Words ending in -TION (a-m)

Words ending with the suffix -TION Letters A-G

With very few exceptions, all of the words on this list are nouns. Those that are also adjectives or verbs are so noted.


abacination (Rare)
abaction (Obsolete)
abalienation (Obsolete) also alienation, estrangement
abannation
abannition (Obsolete) same as banishment
abarticulation also diarthrosis
abbreviation
abdication
abduction
aberration
abevacuation
abirritation
abjection
abjudication (Rare)
abjunction same as abstriction
abjuration
ablactation
ablaqueation (Obsolete)
ablation
ablegation (Obsolete)
abligurition (Obsolete)
ablution
abnegation
abnodation (Rare)
abolition
abomination
abortion
abreaction
abrenunciation (Obsolete)
abreption (Obsolete)
abrogation
abruption
absentation
absolution
absorbition (Obsolete) same as absorption
absorption
abstention
abstraction
abstriction also called abjunction
absumption (Obsolete)
acceleration
accentuation
acceptation
acceptilation
acception (Obsolete) same as acceptation
acclamation (not to be confused with acclimation)

acclimatation same as acclimatisation (British English) or acclimatization (American English)

acclimation (not to be confused with acclamation)
acclimatisation (British English) or acclimatization (American English)
accombination (Rare)
accommodation
accreditation also accreditment
accrementition
accretion
accubation
acculturation
accumulation also cumulation
accusation
accustomation
acervation (Rare) same as accumulation
acetification also acetation
acetylation
achromatisation (British English) or achromatization (American English)
acidification
acidulation
acieration
acquisition
action also an adjective
activation
actualisation (British English) or actualization (American English)
actuation
acuation (Rare)
acuition (Obsolete)
acumination
acupuncturation same as acupuncture (as a noun)
acylation
adaptation also adaption
adaption same as adaptation
addiction
addition (not to be confused with edition)
adduction
ademption
adenisation (British English) or adenization (American English)
adeption (Obsolete) also attainment
adequation (Obsolete)
adfiliation (Obsolete) same as affiliation
adhibition
adhortation (Obsolete) also advice, exhortation
adipoceration
adjection (Rare)
adjudication
adjunction
adjuration
adlegation
adlocution (Obsolete) same as allocution
admensuration same as admeasurement
administration
admiration
admixtion (Rare) same as admixture
admonition
admortization
adnation
adoption
adoration
adornation (Obsolete) same as adornment
adosculation
adrogation (Archaic) similar to arrogation
adscription also ascription
adsignification (Rare)
adsorption
adulation
adulteration
adumbration
adunation
adustion
advection
advocation
advolution (Rare)
aeration
aerification
aerosolisation (British English) or aerosolization (American English)
aerostation
aestivation (British English) or estivation (American English)
affectation
affection
affiliation
affirmation
affixation
afflation
affliction
afforestation also forestation, afforestment
affrication
affriction (Obsolete)
aftersensation
aggeneration (Obsolete)
aggeration (Rare)
agglomeration
agglutination
aggradation
aggrandisation (British English) or aggrandization (American English)
aggravation
aggregation
agitation
aglutition same as dysphagia
agnation
agnition (Obsolete) also acknowledgment
agnomination
agricolation (Obsolete) same as agriculture
alation
albication
albification (Obsolete)
alcoholisation (British English) or alcoholization (American English)
aldolisation (British English) or aldolization (American English)
alembication
alienation
alimentation
alineation or allineation
alkalinisation (British English) or alkalinization (American English)
alkalisation (British English) or alkalization (American English)
alkylation
allectation (Obsolete) also enticement, allurement
allegation (not to be confused with alligation)
allegorisation (British English) or allegorization (American English)
alleviation
alligation (not to be confused with allegation)
allineation or alineation
alliteration
allocation
allocution
alphabetisation (British English) or alphabetization (American English)
alteration
altercation
alternation
alumination (not to be confused with illumination)
alutation (Obsolete)
alveolation
amalgamation
amation (Obsolete) also lovemaking
ambition
ambulation
ambustion
amelioration
Americanization (American English) or Americanisation (British English)
ammoniation
ammonification
ammunition
amolition (Obsolete)

amortization (American English) or amortisation (British English) also amortizement (Am Eng) or amortisement (Br Eng)

amotion
amplexation (Obsolete) also embrace
ampliation (Archaic) also amplification
amplification
amputation

anaesthetisation (British English) or anaesthetization (British, American English) or anesthetization (American English)

anagrammatisation (British English) or anagrammatization (American English)

analysation (British English) or analyzation (American English)
anathematisation (British English) or anathematization (American English)

anatomisation (British English) or anatomization (American English)
androgenisation (British English) or androgenization (American English)

anesthetization (American English) or anaesthetization (American, British English) or anaesthetisation (British English)

angariation (Obsolete)

Anglicisation or anglicisation (British English) or Anglicization or anglicization (American English)

angulation
angustation
anhelation
anilinction also anilinctus
animalisation (British English) or animalization (American English)
animation
annexation
annihilation
annomination
annotation
annulation
annumeration (Obsolete)
Annunciation
annunciation (not to be confused with enunciation)
anodisation (British English) or anodization (American English)
anovulation
antagonisation (British English) or antagonization (American English)
anteposition

anthropomorphisation (British English) or anthropomorphization (American English)

antiabortion also an adjective
antiadministration also an adjective
antiagglutination (this word is an adjective only)
antiannexation (this word is an adjective only)
antiassimilation also an adjective
antiattrition

anticentralisation (British English) or anticentralization (American English) also an adjective

anticipation
anticoagulation
anticonservation also an adjective
anticonvention (this word is an adjective only)
anticorruption also an adjective
antidefamation (this word is an adjective only)
antidegradation (this word is an adjective only)
antidesegregation (this word is an adjective only)
antidesertification (this word is an adjective only)
antidilution (this word is an adjective only)
antidiscrimination (this word is an adjective only)
antieducation (this word is an adjective only)
antievolution (this word is an adjective only)
antifluoridation also an adjective
antifriction also an adjective
antihalation also an adjective
anti-immigration (this word is an adjective only)
anti-induction (this word is an adjective only)
anti-inflation also an adjective
anti-integration (this word is an adjective only)
anti-isolation (this word is an adjective only)
antilibration (Rare) also equipoise
antimachination (this word is an adjective only)

antimechanisation (British English) or antimechanization (American English) (this word is an adjective only)

antimedication (this word is an adjective only)
antimiscegenation also an adjective

antimodernisation (British English) or antimodernization (American English) (this word is an adjective only)

antimonopolisation (British English) or antimonopolization (American English) (this word is an adjective only)

antiorganisation (British English) or antiorganization (American English)
antioxygenation
antipollution (this word is an adjective only)

antipopularisation (British English) or antipopularization (American English) also an adjective

antiprohibition also an adjective
antiproliferation (this word is an adjective only)
antiprostitution also an adjective
antiquation
antiradiation (this word is an adjective only)
antireaction also an adjective
antireflection (this word is an adjective only)
antirejection (this word is an adjective only)
antirestoration (this word is an adjective only)
antisedition (this word is an adjective only)
antisegregation also an adjective
antisophistication
antispeculation also an adjective
antistimulation
antisyndication (this word is an adjective only)
antitaxation (this word is an adjective only)
antitradition (this word is an adjective only)
antivaccination (this word is an adjective only)
antivivisection (adjective) also antivivisectionist (noun, adjective)
antrustion
apertion (Archaic) also aperture
apocopation
apostemation
apparition
appellation
appendication (Obsolete) same as appendage
apperception
appersonation also appersonification
appetition
application
apportion
apposition (not to be confused with opposition)
apprecation (Obsolete)
appreciation
approbation
appropinquation (Rare)
appropriation
approximation
aprication (Rare)
Arabicisation (British English) or Arabicization (American English)
Arabisation (British English) or Arabization (American English)
aration (Rare) also tillage
arbitration
arborisation (British English) or arborization (American English)
arctation
arcuation
arefaction
arenation
areolation
argentation (Rare)
argumentation
argutation (Obsolete)
aridification
arietation (Rare, Obsolete)

ariolation (Obsolete) also harioiation (Obsolete) also soothsaying, prognostication, foretelling

aromatisation (British English) or aromatization (American English)
arpeggiation
arrentation
arreption (Obsolete)
arrestation (Rare)
arrogation
arterialisation (British English) or arterialization (American English)
articulation
ascription also adscription
asexualisation (British English) or asexualization (American English)
aspection (Obsolete)
asperation (not to be confused with aspiration)
aspergation
asphyxiation
aspiration
asportation (Obsolete)
assassination
assastion (Obsolete) also roasting
assecuration (Obsolete) also assurance, certainty
assecution (Obsolete)
assentation
assertion
asseveration
assibilation
assignation
assimilation
assimulation (Obsolete) same as assimilation
association
assuefaction (Obsolete) also habituation
assumption
astipulation (Obsolete) same as stipulation
astriction
astronavigation also celestial navigation
atmolyzation
atomisation (British English) or atomization (American English)
attemperation (Archaic)
attention
attenuation
atterration (Obsolete)
attestation
attraction
attrectation (Obsolete)
attribution
attrition
attuition
auction
aucupation (Obsolete) also birdcatching, fowling
audition
augmentation
auguration
aurigation (Rare)
auscultation
authentication
authorisation (British English) or authorization (American English)
autocorrection
autocorrelation
autodestruction
autofecundation also self-impregnation

autoimmunisation (British English) or autoimmunization (American English) also called autosensitisation (Br Eng) or autosensitization (Am Eng)

autoinfection
autoinoculation

autointoxication also called autotoxemia (American English) or autotoxaemia (British English) also autotoxicosis

autoionisation (British English) or autoionization (American English)
automanipulation
automation
automatization (American English) or automatisation (British English)
autorotation

autosensitisation (British English) or autosensitization (American English) same as autoimmunisation (Br Eng) or autoimmunization (Am Eng)

automisation (British English) or automatization (American English) autoregulation
autoreinfection same as autoinfection
autosuggestion
autotoxication same as autointoxication
autotransplantation
autoxidation also autooxidation
averruncation (Rare, Obsolete)
aversation
aviation
avocation (not to be confused with evocation)
avolation (Obsolete)
axiomatisation (British English) or axiomatization (American English)
backwardation
bacterisation (British English) or bacterization (American English)
balection same as bolection
Balkanisation (British English) or Balkanization (American English)
ballotation (Obsolete)
balneation (Rare)
balsamation
banalisation (British English) or banalization (American English)
bannition (Obsolete) also expulsion

baptisation (British English - Obsolete) or baptization (American English - Obsolete) same as baptism

barbarisation (British English) or barbarization (American English)
basification
bastardisation (British English) or bastardization (American English)
bastion
beatification
beautification
belection same as bolection
benediction
benefaction
beneficiation
bibation
bifurcation
bijection
bilection same as bolection
biliation
bilocation
bioaccumulation also biological accumulation
biodegradation
biodeterioration same as biodegradation
biocomputation
bioinstrumentation
bioremediation also called phytoremediation
biotransformation
bipartition
bipolarisation (British English) or bipolarization (American English)
bisection
bisociation (British English)
bituminization (American English) or bituminisation (British English)
blandation (Obsolete) same as flattery
blastulation
blatteration
blaxploitation (American English)
bletheration (Scottish English) also nonsense
bloviation
boation (Obsolete)
bolection
bombilation
bombination
bonification
botheration also an interjection
bourgeoisification
bowdlerisation (British English) or bowdlerization (American English)
brachiation
brecciation
bromination
brutalisation (British English) or brutalization (American English)
bullition (Obsolete)

bureaucratisation (British English) or bureaucratization (American English)

butylation
cachinnation
calamistration (Obsolete)
calcification
calcination
calcitration
calculation
calefaction
calendarisation (British English) or calendarization (American English)
calibration
caligation (Rare) also dimness, cloudiness
callisection
calorification
calumniation
cameration (Rare)
canalization (American English) or canalisation (British English)
cancellation or cancelation

canceration also cancerisation (British English) or cancerization (American English)

cannibalization (American English) or cannibalisation (British English)
canisterisation (British English) or canisterization (American English)
cannulation

cannulisation (British English) or cannulization (American English) same as cannulation

canonisation (British English) or canonization (American English)
cantation (Obsolete)
cantillation
cantion (Obsolete)
cannulation
canonization (American English) or canonisation (British English)
cantion (Obsolete)
capacitation
capillation (Obsolete) also capillary blood vessel
capitalisation (British English) or capitalization (American English)
capitation
capitalization (American English) or capitalisation (British English)
capitulation
caponisation (British English) or caponization (American English)
caprification
capsulation
captation (Obsolete)
caption also a verb
captivation
caramelization (American English) or caramelisation (British English)
carbonatation
carbonation
carbonization (American English) or carbonisation (British English)
carbonylation
carboxylation
carbunculation
carburation also carburetion, carburization
carburisation (British English) or carburization (American English)
cardioacceleration
carnation also an adjective
carnification
cartelisation (British English) or cartelization (American English)
cartilaginification
caseation
cassation
castellation
castigation
castrametation
castration
casualisation (British English) or casualization (American English)
catechisation (British English) or catechization (American English)
categorization (American English) or categorisation (British English)
catenation also concatenation
catheterisation (British English) or catheterization (American English)
catholicisation (British English) or catholicization (American English)
cation or kation
caudation
causation
cauterisation (British English) or cauterization (American English)
caution also a verb
cauterization (American English) cauterisation (British English)
cavillation (Obsolete)
cavitation
cecoplication
celebration
cellulation
celonavigation also celestial navigation
cementation
cenation (Obsolete) also dining, supping
centesimation
centonization (American English) or centonisation (British English)
centralization (American English) centralisation (British English)

centrifugalisation (British English) or centrifugalization (American English)

centrifugation
centuplication
centuriation (Obsolete)
cephalisation (British English) or cephalization (American English)
cerebration
certification
cessation
channelization (American English) or channelisation (British English)
chaptalisation (British English) or chaptalization (American English)
characterisation (British English) or characterization (American English)
chatteration (Colloquial)
chelation
cheluviation
chemexfoliation
chemisorption also chemosorption
chemoprevention same as chemoprophylaxis
chemoprotection
chemoreception
chemosorption also chemisorption
chitinisation (British English) or chitinization (American English)
chlorination
chloritisation (British English) or chloritization (American English)
chondrification
chorisation (British English) or chorization (American English)
choritisation (British English) or choritization (American English)
chrismation
Christianisation (British English) or Christianization (American English)
chylifaction same as chylopoiesis
chylification same as chylopoiesis
chymification same as chymopoiesis
cibation
cicatrization (American English) or cicatrisation (British English)
cicuration (Obsolete)
ciliation
cinchonisation (British English) or cinchonization (American English)
cinefaction (Obsolete) same as cineration
cineration
circination (Obsolete)
circuition (Rare) same as circumlocution
circularisation (British English) or circularization (American English)
circulation
circumambulation
circumcursation (Obsolete)
circumdenudation
circumduction
circumfixation
circumflection variant of circumflexion
circumgestation (Obsolete)
circumgyration
circumlocution
circumnavigation
circumnutation
circumposition
circumrotation
circumscription
circumspection
circumstantiation
circumvallation
circumvection
circumvention
circumvolation (Rare)
circumvolution
citation
citification or cityfication
citrination
cityfication or citification
civilianisation (British English) or civilianization (American English)
civilization (American English) or civilisation (British English)
clamation
clarification
classification
claudication
claustration
clavation
Claymation™ or claymation
climatization (American English) or climatisation (British English)
coacervation
coaction
coadaptation
coadministration
coadunation
coadunition (Rare) same as coadunation
coagmentation (Obsolete)
coagulation
coalification
coalition
coaptation
coarctation
coarticulation
coaxation (Rare)
cocainization (American English) or cocainisation (British English)
cockneyfication
coction
cocultivation (British English)
codeclination
codetermination
codification
codirection (British English)
coedition
coeducation or co-education
coemption
coevolution
cofunction
cogeneration
cogitation
cognation
cognition
cognomination (Rare) also cognomen, surname
cohabitation
cohibition (Obsolete) also hindrance, restraint
cohobation
coindication
coinquination (Obsolete) also defilement
coition same as coitus
colation (Rare - not to be confused with collation)
collaboration
collagenation
collateralisation (British English) or collateralization (American English)
collation
collection
collectivization (American English) or collectivisation (British English)
colligation
collimation
collineation same as collimation
colliquation
colliquefaction
collocation
collocution
colluctation (Obsolete) also contention, struggling
colocation
colonialisation (British English) or colonialization (American English)
colonization (American English) or colonisation (British English)
coloplication
coloration (American English) or colouration (British English)

colorization (American English) or colorisation, colourization, colourisation (British English)

columniation
combination
combustion
comessation (Obsolete) also rioting
commemoration
commendation
commensation (Obsolete) same as commensality
commensuration
commentation (Rare)

commercialization (American English) or commercialisation (British English)

commigration (Rare)
commination
comminution
commiseration
commixtion (Rare)
commodification
commoditization
commonition (Obsolete) also advice, warning
commoration (Obsolete)
commotion

communalisation (British English) or communalization (American English)

communication
communisation (British English) or communization (American English)
commutation
compactification
compaction
compagination
comparation (Obsolete) also comparison

compartimentation (Obsolete) same as compartmentation and compartmentalization (American English) or compartmentalisation (British English)

compartition (Obsolete)
compellation (not to be confused with compilation)
compensation
competition
compilation
complanation
complementation
complection same as complexion
completion
complexation (British English)
complexification
complication
comportation (Obsolete)
composition
compotation
comprecation (Obsolete)

comprehensivisation (British English) or comprehensivization (American English)

comprobation (Obsolete)
compunction
compurgation
computation
computerization (American English) or computerisation (British English)
conation
concameration
concatenation also catenation
concavation
concelebration
concentration
conception

conceptualization (American English) or conceptualisation (British English)

concertation
concertion (Rare)
conciliation
concitation (Obsolete)
conclamation (Rare)
concoction
concorporation
concremation (Obsolete)
concretion
concretisation (British English) or concretization (American English)
concrimination
conculcation
concussation (Obsolete)
condemnation
condensation
condimentation
condition
condonation
conduction
conduplication
confabulation
confarreation
confection
confederation
configuration
confirmation
confiscation
conflagration
conflation
confliction
conformation
confortation (Obsolete)

confraternization (American English) or confraternisation (British English)

confrication (Obsolete) also friction
confrontation
confutation
congelation
congestion
conglaciation
conglobation
conglobulation
conglomeration
conglutination
congratulation
congregation
conjugation
conjunction
conjuration
connation
connection (American English) also connexion (British English)
conniption (American English) also called conniption fit
connotation
connumeration (Rare)
consarcination (Obsolete) also patchwork
conscription
consecration
consecution
consertion (Rare)
conservation
consideration
consignation
consignification (Rare) also joint signification
consociation
consolation
consolidation
consopiation (Obsolete)
consortion
conspiration
conspissation (Rare) also inspissation
conspurcation
constatation
constellation
consternation
constipation
constitution

constitutionalisation (British English) or constitutionalization (American English)

constriction
construction
constupration
consubstantiation
consultation
consummation
consumption
contaction (Obsolete)
containerization (American English) or containerisation (British English)
contamination
contection (Obsolete)
contemperation (Obsolete)
contemplation

contemporisation (British English) or contemporization (American English)

contentation (Obsolete) also satisfaction
contention
contesseration (Obsolete)
contestation

contextualisation (British English) or contextualization (American English)

contignation
continuation
contortion
contraception
contraction
contradiction
contradistinction
contraindication
contraposition
contraption
contrarotation
contravallation
contravention
contribution
contristation (Obsolete)
contrition
conurbation
convection
convention

conventionalisation (British English) or conventionalization (American English)

conversation
conveyorisation (British English) or conveyorization (American English)
conviction
convocation
convolution
cooperation
cooptation or co-optation also cooption or co-option
coordination

copolymerisation (British English) or copolymerization (American English)

coportion (Obsolete)
co-production
copulation
corelation (British English) or correlation (American English)
cornification
coronation
corotation
corporation
corporification (Obsolete) also embodiment
corradiation
correction
correlation (American English) or corelation (British English)
correption (Obsolete) also reproof, reproach
corrivation (Obsolete)
corroboration
corrugation
corruption
cortication
coruscation
cotransduction
counteraccusation
counteraction
counteradaptation
counterassassination
counterclassification
counterconvention
counterdeclaration
counterdemonstration
counterinflation also an adjective
counterinstitution
counterinterpretation
counterirritation

countermobilisation (British English) or countermobilization (American English)

countermotion (British English)
counterpetition also a verb
counterquestion also a verb
counterreaction
counterreformation
counterretaliation
counterrevolution or counter-revolution
countersuggestion
countertradition
countervallation same as contravallation
covariation
crastination (Obsolete) same as procrastination
creation
cremation
crenation
crenelation (American English) or crenellation (British English)
crenulation
creolisation (British English) or creolization (American English)
crepitation
cribration
criminalization (American English) or criminalisation (British English)
crimination
crispation
cross section (American English) or cross-section (British English)
cruciation (Obsolete) also torture, torment
crustation
cryopreservation
crystallisation (British English) or crystallization (American English)
cubation (Obsolete)
culmination
cultivation
cumulation
cunctation
cupellation
curarization (American English) or curarisation (British English)
curation
curtation
curvation
cuspidation
customisation (British English) or customization (American English)
cutinization (American English) or cutinisation (British English)
cyanidation
cyanoethylation
cybernation
cyclisation (British English) or cyclization (American English)
cycloaddition
cytodifferentiation
damnation also an interjection
damnification
dandification
darnation also an interjection (Informal) also damnation
Datamation
deacceleration
deacetylation
deacidification
deacquisition same as deaccession
deactivation
deaeration
deafferentation
dealation
dealbation (Obsolete) also bleaching, whitening
dealcoholisation (British English) or dealcoholization (American English)
deallocation
deambulation (Obsolete) also promenading
deamination
deaminisation (British English) or deaminization (American English)
deannexation
deaspiration
deattribution
deauration (Obsolete)
debacchation (Rare) also debauchery
debarcation variant of debarkation
debarkation
debellation (Obsolete)
debilitation

debituminisation (British English) or debituminization (American English)

debulition (Obsolete)
decaffeination
decalcification
decantation
decapacitation
decapitalisation (British English) or decapitalization (American English)
decapitation
decarbonation
decarbonisation (British English) or decarbonization (American English)
decarboxylation

decarburisation (British English) or decarburization (American English) also decarburation

decasualisation (British English) or decasualization (American English)
deceleration
decentralisation (British English) or decentralization (American English)
deception
decerebration
decerption
decertation (Rare)
decertification
dechlorination

dechristianisation (British English) or dechristianization (American English)

decimalization (American English) or decimalisation (British English)
decimation
decivilisation (British English) or decivilization (American English)
declamation
declaration
declassification
declination
decoction
decollation

decollectivisation (British English) or decollectivization (American English)

decolonisation (British English) or decolonization (American English)

decoloration (American English) or decolouration (British English) also decolorization (Am Eng) or decolourisation (Br Eng)

decompensation
decomposition
deconcentration
decondition (this word is a verb only)
decongestion
deconsecration
deconstruction
decontamination
decoration
decortication
decortisation (British English) or decortization (American English) decreation
decreolisation (British English) or decreolization (American English)
decrepitation
decretion (Obsolete)

decriminalisation (British English) or decriminalization (American English)

decrustation
decryption
decubation (Obsolete) also decumbence
decumulation
decurtation (Obsolete)
decurvation
decussation
dedecoration (Obsolete) also disgrace, dishonor
dedentition (Rare)
dedesignation
dedication
dedifferentiation
dedition (Rare)
deduction
deduplication
de-energisation (British English) or de-energization (American English)
deescalation or de-escalation
de-evolution
de-expropriation
defalcation
defamation
defatigation (Rare) also weariness, fatigue
defecation
defection

defedation (American English - Obsolete) or defoedation (British English - Obsolete) also pollution

defeminisation (British English) or defeminization (American English)
defenestration
defibrillation
defibrination
defiguration (Obsolete) same as disfiguration
defiliation
definition
deflagration
deflation
deflection (American English) or deflexion (British English)
deflectionization
defloration
defluoridation
defocalisation (British English) or defocalization (American English)

defoedation (British English - Obsolete) or defedation (American English - Obsolete) also pollution

defoliation
deforciation same as deforcement
deforestation also disforestation
deformalisation (British English) or deformalization (American English)
deformation
defraudation
defunction (Obsolete) same as death
degeneration
deglaciation

deglamorization (American English) or deglamourisation (British English)

deglutination
deglutition
degradation
degranulation
degration (Rare) similar to degradation
degravation (Obsolete)
degustation
dehonestation (Obsolete)
dehortation
dehumanisation (British English) or dehumanization (American English)
dehumidification
dehydration
dehydrochlorination
dehydrogenation

dehydrogenisation (British English) or dehydrogenization (American English)

dehypnotisation (British English) or dehypnotization (American English)
deification
deindividuation

deindustrialisation (British English) or deindustrialization (American English)

deinstitutionalisation (British English) or deinstitutionalization (American English)

de-integration
deionisation (British English) or deionization (American English)
dejection
dejeration (Obsolete)
delabialisation (British English) or delabialization (American English)
delaceration (Obsolete)
delacrimation or formerly delacrymation
delactation (Obsolete) also weaning
delamination
delapsation same as delapsion also prolapsion
delassation
de-Latinisation (British English) or de-Latinization (American English)
delation
delectation
delegation
delegitimation
delegitimisation (British English) or delegitimization (American English)
deletion
delibation (Obsolete)
deliberation
delibration (Obsolete)
deligation (Archaic - not to be confused with delegation)
delimitation
delineation
delinition (Obsolete)
deliquation (Obsolete)
deliquiation
deliration (Archaic) also delirium, mental derangement
delitigation (Obsolete)
delocalization (American English) or delocalisation (British English)
deltafication (Rare)

demagnetisation (British English) or demagnetization (American English)

demagnification
demarcation or demarkation

demasculinisation (British English) or demasculinization (American English)

dematerialisation (British English) or dematerialization (American English)

dementation
demibastion
demigration (Obsolete) same as emigration
demilitarisation (British English) or demilitarization (American English)

demineralisation (British English) or demineralization (American English)

demobilisation (British English) or demobilization (American English)
democratization (American English) or democratisation (British English)
demodulation
demolition

demonetarisation (British English) or demonetarization (American English) same as demonetisation (Br Eng) or demonetization (Am Eng)

demonisation (British English) or demonization (American English)
demonstration
demoralisation (British English) or demoralization (American English)
demotion
demotivation
demulsification
demyelination
demystification

demythologisation (British English) or demythologization (American English)

denationalisation (British English) or denationalization (American English)

denaturalisation (British English) or denaturalization (American English)
denaturation
denazification
denegation
denervation
denidation
denigration
denitration
denitrification
denization also denizenation
denomination
denormalisation (British English) or denormalization (American English)
denotation
densification
dentation
denticulation
dentilation same as dentition
dentition

denuclearisation (British English) or denuclearization (American English)

denudation
denunciation
denutrition
de-objectification
deodorisation (British English) or deodorization (American English)
deoppilation (Obsolete)
deordination (Obsolete) also disorder, dissoluteness
deossification
deoxidation
deoxidisation (British English) or deoxidization (American English)
deoxygenation

departmentalisation (British English) or departmentalization (American English)

depauperation
depeculation (Obsolete) also embezzlement
deperdition (Archaic) also destruction

depersonalisation (British English) or depersonalization (American English)

dephlegmation (Obsolete)

dephosphorisation (British English) or dephosphorization (American English)

dephosphorylation
depiction
depigmentation
depilation
deplantation
depletion
deplication (Obsolete)
deploitation same as exploitation
deploration
deplumation
depolarisation (British English) or depolarization (American English)

depoliticalisation (British English) or depoliticalization (American English)

depoliticisation (British English) or depoliticization (American English)

depolymerisation (British English) or depolymerization (American English)

depopulation
deportation
depositation 1. act of depositing 2. (Scottish English, Law)
deposition
depravation (not to be confused with deprivation)
deprecation
depreciation
depredation (usually plural: depredations)

depressurisation (British English) or depressurization (American English)

deprivation (not to be confused with depravation)

deprovincialisation (British English) or deprovincialization (American English)

depuration
deputation
deputisation (British English) or deputization (American English)
deracination
deraination (Rare)
deration (this word is a verb only)
deratisation (British English) or deratization (American English)
derealisation (British English) or derealization (American English)
derecognition
deregistration
deregulation
dereliction
derequisition (British English) also a verb
derestriction
derivation
derivatisation (British English) or derivatization (American English)
derogation
desacralisation (British English) or desacralization (American English)

desalination also desalinisation (British English) or desalinization (American English)

desaturation
description
desecration
desegmentation
desegregation
deselection
desensitisation (British English) or desensitization (American English)
desertification
desertion

desertisation (British English) or desertization (American English) same as desertification

desexualisation (British English) or desexualization (American English)
desiccation
desideration
designation
desilverisation (British English) or desilverization (American English)
desition (Rare) same as desinence
desolation
desorption
despecfication also discrimination
despecialisation (British English) or despecialization (American English)
despeciation
despection (Rare)
desperation
despoliation
desponsation (Obsolete) also betrothal
despumation
desquamation
destabilisation (British English) or destabilization (American English)
destination also an adjective
destitution
destruction
desudation

desulfuration or desulphuration also desulfurization or desulphurization (American English) or desulfurisation or desulphurisation (British English)

desynchronisation (British English) or desynchronization (American English)

desynonymisation (British English) or desynonymization (American English)

detection
detention also an adjective
deterioration
determination
deterration
detestation

dethronisation (British English - Obsolete) or dethronization (American English - Obsolete) same as dethronement

detonation

detonisation (British English) or detonization (American English) same as detonation

detortion
detoxication also detoxification
detraction
detribalisation (British English) or detribalization (American English)
detrition
detruncation
deturbation (Obsolete)
deturpation (Obsolete)
deuteration

devalorisation (British English) or devalorization (American English) also devaluation

devaluation
devaporation

devascularisation (British English) or devascularization (American English)

devastation
deviation
devirgination (Rare)
devitalisation (British English) or devitalization (American English)
devitation (Obsolete)
devitrification
devocalisation (British English) or devocalization (American English)
devocation (Rare)
devolatilisation (British English) or devolatilization (American English)
devolution
devoration (Obsolete)
devotion
dextrorotation
dezincification
diagonalisation (British English) or diagonalization (American English)
dialyzation
diazotisation (British English) or diazotization (American English)
dichotomisation (British English) or dichotomization (American English)
dictation
diction
diduction
dieselisation (British English) or dieselization (American English)
diffarreation
differentiation
difflation (Obsolete)
diffraction
digestion

digitalization (American English) or digitalisation (British English) also digitization (Am Eng) or digitisation (Br Eng)

digitation

digitization (American English) or digitisation (British English) also digitalization (Am Eng) or digitalisation (Br Eng)

digladiation (Obsolete)
dignation (Obsolete)
dignification
dignotion (Obsolete)
dijudication (Rare)
dilaceration
dilaniation (Rare) same as dilaceration
dilapidation
dilatation also dilation
dilection (Obsolete)
dilucidation (Obsolete)
dilution
dimerisation (British English) or dimerization (American English)
dimication (Obsolete)
dimidiation
diminution
dinumeration (Obsolete) same as enumeration
diphthongation same as diphthongization

diphthongisation (British English) or diphthongization (American English)

diradiation
direction
diremption
direption (Rare)
diruption (Rare) same as disruption
disaccommodation (Rare)
disaffection
disaffiliation
disaffirmation
disafforestation (British English) also disafforestment
disaggregation
disambiguation
disanimation
disapplication (British English)
disapprobation
disappropriation
disarticulation
disassimilation
disassociation
disattribution
disboscation
discalceation (Obsolete)
discapacitation (Rare)
disceptation (Archaic) also disputation, discussion
discerption
disclamation

discoloration (American English) or discolouration (British English) also called discolorment (Am Eng) or discolourment (Br Eng)

discombobulation
discommendation
discomposition (Obsolete) also inconsistency, discordance
disconcertion also disconcertment
disconfirmation
disconnection (American English) also disconnexion (British English)
disconsolation also disconsolateness
discontentation (Obsolete) same as discontentment
discontinuation
discretion
discrimination
disculpation same as exculpation
disembarkation also disembarkment
disequilibration
disestimation (noun) also disesteem (noun, verb)
disfiguration same as disfigurement
disforestation 1. same as deforestation 2. same as disafforestation
disfunction or dysfunction
disgestion (Obsolete) same as digestion
disgradation (Scottish English, Law)
disgregation
dishabilitation (Scottish English, Law)
disincarceration
disinclination
disincorporation

disindustrialisation (British English) or disindustrialization (American English)

disinfection
disinfestation
disinflation
disinformation
disinhibition
disintegration
disintermediation
disintoxication also detoxification (in the medical sense of the word)
disinvitation
disjection
disjudication (Obsolete) same as dijudication
disjunction
dislocation
dismutation
disobligation
disoccupation (Rare)
disoperation
disordination (Obsolete)
disorganisation (British English) or disorganization (American English)
disorientation
disoxidation (Rare) same as deoxidation
disoxygenation (Rare) same as deoxidation
disparition (Obsolete) also disappearance
dispensation
displantation
disposition
disproportion
disproportionation
disputation
disqualification
disquisition
disrelation
disreputation (Archaic) same as disrepute
disruption
dissatisfaction
dissecation (Obsolete) same as dissection
dissection
dissemination
dissentation (Obsolete) same as dissension
dissention same as dissension
dissertation
disseveration also disseverance, disseverment
dissilition (Rare)
dissimilation
dissimulation
dissipation
dissociation
dissolution
dissyllabification
distention or distension
distermination (Obsolete)
distillation
distinction
distortion
distraction
distribution
distributution corrupted variant of distribution
distriction (Rare)
disturbation (Obsolete)
disvaluation
disyllabification
ditation (Obsolete)
dition (Obsolete) also dominion
diurnation
divagation
divarication
diverberation
diversification
divination
divinization (American English) or divinisation (British English)
divisionalisation (British English) or divisionalization (American English)
divulgation
dockisation (British English) or dockization (American English)

documentarisation (British English) or documentarization (American English)

documentation
dogmatization (American English) or dogmatisation (British English)
dollarization (American English) or dollarisation (British English)
dolomitisation (British English) or dolomitization (American English)
domestication
domiciliation
domination
donation
dormition
dotation
downregulation
dramatization (American English) or dramatisation (British English)
dubitation (Archaic) same as doubt (as a noun)
duction
dulcification
dulcoration (Rare)
duplication
duration
dynamisation (British English) or dynamization (American English)
dysfunction or disfunction
dystrophication
Easternisation (British English) or Easternization (American English)
ebullition
eburnation
eburnification
echolocation
economisation (British English) or economization (American English)
edentation (Rare)
edification
edition (not to be confused with addition)
editorialization (American English) or editorialisation (British English)
education
eduction
edulcoration
effascination (Obsolete)
effection (Rare - not to be confused with affection)
effectuation
effemination
effigiation
effiguration
efflation
efformation (Obsolete)
effraction
effrenation (Obsolete) also unruliness
egestion
eigenfunction also called proper function
ejaculation
ejection
ejulation (Obsolete) also lamentation
elaboration
elapidation (Rare)
elation
election
electrification
electrition (not to be confused with electrician)

electrisation (British English) or electrization (American English) same as electrification

electrocoagulation
electrocution
electrodeposition
electrodesiccation
electroextraction also called electrowinning
electrolysation (British English) or electrolyzation (American English)
elementation (Rare)
elevation
elicitation
elimination
elinguation
eliquation
elixation (Obsolete)
elocation (Obsolete)
elocution
elongation
elucidation
eluctation (Obsolete)
elucubration
elution
elutriation
eluviation
eluxation also luxation
emaceration (Obsolete) same as emaciation
emaciation
emaculation (Obsolete)
emanation
emancipation
emargination
emasculation
embarcation same as embarkation
embolisation (British English) or embolization (American English)
embrocation
emendation
emication
emiction same as urination
emigration (not to be confused with immigration)
emollition
emotion
emplastration
emplection corrupt variant of emplecton
emption (Rare)
emunction
emulation
emulsification
emuscation (Obsolete)
enaction
enamoration
enarration (Obsolete)
enatation (Obsolete)
enation
encapsulation
encrustation or incrustation
encryptation same as encryption
encryption
enculturation
encystation also encystment
endenisation (British English) or endenization (American English)
endoreduplication
energisation (British English) or energization (American English)
enervation
enfeudation (Obsolete) same as infeudation
engraftation or ingraftation also engraftment or ingraftment
ennation
enodation (Rare)
enolisation (British English) or enolization (American English)
enquiration (Archaic)
enthronisation (British English) or enthronization (American English)
entortilation (Obsolete)
enucleation
enumeration
enunciation (not to be confused with annunciation)
envenomation
envenomisation (British English) or envenomization (American English)

epidermisation (British English) or epidermization (American English) same as epithelisation or epithelialisation (Br Eng) or epithelization or epithelialization (Am Eng)

epidotisation (British English) or epidotization (American English)
epilation
epilogation (Obsolete)

epithelisation (British English) or epithelization (American English) also epithelialisation (Br Eng) or epithelialization (Am Eng) also called epidermisation (British English) or epidermization (American English)

epitomisation (British English) or epitomization (American English)
epotation (Obsolete)
epoxidation
epulation (Obsolete) also banquet
epuration
equalisation (British English) or equalization (American English)
equation
equilibration
equiparation
equiponderation
equitation
equivocation
eradiation same as radiation
eradication
erection
ereption (Obsolete)
eretation (Obsolete)
erogation (Obsolete)
eroticisation (British English) or eroticization (American English)
erotisation (British English) or erotization (American English)
erration (Obsolete)
eructation
erudition
eruption
escalation
esophagoplication (American English) or oesophagoplication (British English)
esterification
estimation
estivation (American English) or aestivation (British English)
estuation

eternalisation (British English) or eternalization (American English) also eternisation (Br Eng) or eternization (Am Eng)

etherealisation (British English) or etherealization (American English)
etherification
etherisation (British English) or etherization (American English)
ethylation
etiolation
eutrophication
evacuation
evagation (Rare)
evagination
evaluation
evangelization (American English) or evangelisation (British English)
evanition also evanishment
evaporation
evapotranspiration
evection
eventilation (Obsolete)
eventration
eventuation
eviction
evigilation (Obsolete)
eviration (Obsolete) same as castration
evisceration
evitation (Obsolete) also shunning, avoidance
evocation (not to be confused with avocation)
evolation (Obsolete)
evolution
evomition (Obsolete) also vomiting
evulgation (Obsolete) same as divulgement
exacerbation
exacervation (Obsolete)
exacination
exaction
exaggeration
exagitation (Obsolete) same as agitation
exaltation
examination
exanimation
exantlation (Obsolete)
exaptation
exaration (Obsolete)
exarticulation same as disarticulation
exasperation
exauctoration same as exauthoration
exauguration (Obsolete) same as desecration
exauthoration
excalceation (Obsolete)
excalfaction (Obsolete) same as calefaction
excantation (Obsolete)
excarnation also excarnification
excavation
excecation (Obsolete)
exception
excerebration
excerption
excitation
exclamation
exclaustration
excoction (Obsolete)
excogitation
excommunication
excoriation
excortication
excreation (Obsolete)
excretion
excruciation
excubation (Obsolete)
exculpation
excurvation also excurvature
excusation (Obsolete) same as excuse
execration
exection (Obsolete) same as exsection
execution
exemplification
exemption
exenteration
exercitation
exertion
exestuation (Obsolete)
exfetation
exfiltration
exfoliation
exhalation
exhaustion
exheredation (Rare) also exhereditation (Rare)
exhibition
exhilaration
exhortation
exhumation
exiccation (Obsolete) same as exsiccation
exilition (Obsolete)
exinanition (Obsolete)
existimation (Obsolete) also reputation
exolution (Obsolete) same as exsolution
exoneration
exoration (Rare) also entreaty
exornation (Obsolete) also embellishment
exossation (Obsolete)
expatiation
expatriation
expectation
expectoration
expeditation
expedition
experimentation
experrection (Obsolete)
expiation
expilation (Obsolete)
expiration
expiscation (Scottish English)
explanation
explantation
expletion (Obsolete) also accomplishment, fulfillment
explication
exploitation
exploration

expoliation (Obsolete) same as exspoliation (Rare, Obsolete) same as spoliation

exponentiation
exportation
exposition
expostulation
exprobration (Obsolete) also upbraiding
expropriation
expugnation (Rare)
expunction
expurgation
exsanguination
exsection
exsertion
exsiccation
exsolution
exsorption
exspoliation (Rare, Obsolete) same as spoliation
exspuition (Rare)
exsuction
exsudation same as exudation
exsufflation
exsuscitation (Obsolete)
extemporisation (British English) or extemporization (American English)
extensification
extensivisation (British English) or extensivization (American English)
extenuation
extemporization (American English) or extemporisation (British English)

exteriorization (American English) or exteriorisation (British English) also externalization (Am Eng) or externalisation (Br Eng)

extermination

externalization (American English) or externalisation (British English) also exteriorization (Am Eng) or exteriorisation (Br Eng)

extillation (Obsolete) same as distillation
extimulation (Obsolete) same as stimulation
extinction
extirpation
extortion
extraction
extradition
extrapolation
extraposition
extravagation
extravasation
extrication
extrospection
extruction (Obsolete)
extuberation (Obsolete) same as protuberance
exudation
exulceration (Rare or Obsolete)
exultation also exultance, exultancy
exumblication
exundation (Rare)
exuperation (Obsolete)
exustion
exuviation
fabrication
faction
facilitation
faction
factorization (American English) or factorisation (British English)
falcation
falsification
familiarisation (British English) or familiarization (American English)
fantastication
faradization (American English) or faradisation (British English)
farreation same as confarreation
fasciation
fasciculation
fascination
fatigation (Obsolete) same as weariness
februation (Obsolete)
fecundation
federalization (American English) or federalisation (British English)
federation
felicitation
fellation (Rare) same as fellatio
feminisation (British English) or feminization (American English)
feneration
fenestration
feriation (Obsolete)
fermentation
ferrumination (Rare)
fertigation
fertilization (American English) or fertilisation (British English)
festination
fetation (American English) or foetation (British English)
feudalization (American English) or feudalisation (British English)
fiberisation (British English) or fiberization (American English)
fibrillation
fibrination
fiction
fictionalisation (British English) or fictionalization (American English)

fictionisation (British English) or fictionization (American English) same as fictionalisation (Br Eng) or fictionalization (Am Eng)

figuration
filiation
filtration
fimbriation
finalization (American English) or finalisation (British English)
fissigemmation
fissipation also fissiparism
fissuration
fixation
flabbergastation (Humorous)
flabellation
flagellation
flagitation (Archaic) also importunity
flagration (Obsolete) same as conflagration
flammation (Obsolete)
flammulation
flection (American English) also flexion (British English)
flexibilization (American English) or flexibilisation (British English)
flirtation
floatation same as flotation
floccillation also called carphology
floccinaucinihilipilification
flocculation
floriation
florification
flossification (Rare) same as florification
flotation or floatation
fluctuation
fluidisation (British English) or fluidization (American English)
fluoridation
fluoridization (American English) or fluoridisation (British English)
fluorination
flusteration (Colloquial)
flustration (Colloquial)
fluxation
focalization (American English) or focalisation (British English)
focillation (Obsolete)
foetation (British English) or fetation (American English)
foliation
fomentation
forcipation
foreordination
forestation also afforestation
forisfamiliation
formalization (American English) or formalisation (British English)
formation
formication
formularization (American English) or formularisation (British English)
formulation
formulization (American English) or formulisation (British English)
fornication
fortification
fortition
fossilification
fossilization (American English) or fossilisation (British English)
foundation
fraction also a verb
fractionalisation (British English) or fractionalization (American English)
fractionation
fractionisation (British English) or fractionization (American English)
fragmentation
fragmentisation (British English) or fragmentization (American English)
fraternation (Rare) same as fraternization
fraternization (American English) or fraternisation (British English)
Frenchification
frequentation
friation
frication
friction
frigefaction (Obsolete)
frondation
fructification
fructuation (Rare)
fruition
frumentation
frustration
fugitation (Scottish English, Law)
fulguration
fulmination
fumigation
funambulation
function also a verb
funeration (Obsolete)
furcation
furfuration also desquamation
fuscation (Obsolete) same as obfuscation also obscurity
fusillation
fustigation
futurition (Rare)
Gallicisation (British English) or Gallicization (American English)
galvanization (American English) or galvanisation (British English)
gammation variant of gammadion
gasification
gastroplication also called gastrorrhaphy
gastrulation
gelatification
gelatination
gelatinization (American English) or gelatinisation (British English)
gelation
gemination
gemmation
gemmification
gemmulation
generalization (American English) or generalisation (British English)
generation
generification
geniculation
gentrification
genuflection (American English) also genuflexion (British English)
geometrisation (British English) or geometrization (American English)
Germanization (American English) or Germanisation (British English)
germination
gestation
gesticulation
ghettoisation (British English) or ghettoization (American English)
glaciation

glamorisation or glamourisation (British English) or glamorization (American English)

glandulation
glauconitisation (British English) or glauconitization (American English)
gleisation (British English) or gleization (American English)
globalisation (British English) or globalization (American English)
glomeration
gloriation (Obsolete)
glorification
glutination
glycation
glycosylation
gradation
graduation
grammatication (Obsolete)
grangerisation (British English) or grangerization (American English)
granitification same as granitization
granitisation (British English) or granitization (American English)
granulation
granulitisation (British English) or granulitization (American English)
graphitisation (British English) or graphitization (American English)
grassation (Obsolete, Rare)
graticulation
gratification
gratulation
gravidation (Obsolete) same as gravidity
gravitation
greisenisation (British English) or greisenization (American English)
grivation same as grid variation (Navigation)
grossification
gubernation (Obsolete) also governance
gumption
gurgitation
gustation
guttation
gutturalisation (British English) or gutturalization (American English)
gyration
gyrostabilisation (British English) or gyrostabilization (American English)
habilitation
habitation
habituation
halation
half-section
hallucination
halogenation

hariolation (Obsolete) also ariolation (Obsolete) also soothsaying, prognostication, foretelling

harmonisation (British English) or harmonization (American English)
haruspication

Haussmannisation (British English) or Haussmannization (American English)

haustration
hebetation
Hebraisation (British English) or Hebraization (American English)
Hellenisation (British English) or Hellenization (American English)
hemagglutination
hemisection
hemodilution
hepatisation (British English) or hepatization (American English)
herborisation (British English) or herborization (American English)
heretification
herniation
hesitation
hiation (Obsolete)
hibernation
hibernisation (British English) or hibernization (American English)
himation
historicisation (British English) or historicization (American English)
hominisation (British English) or hominization (American English)
homogenisation (British English) or homogenization (American English)
homologation
homotransplantation
honestation (Obsolete)
horrification
horripilation
hortation
hospitalisation (British English) or hospitalization (American English)
humanisation (British English) or humanization (American English)
humation (Rare) also inhumation
humectation (Obsolete)
humicubation (Obsolete)
humidification
humification
humiliation
hyalinisation (British English) or hyalinization (American English)
hybernation variant of hibernation
hybridisation (British English) or hybridization (American English)
hydration
hydrogasification
hydrogenation
hydrogenisation (British English) or hydrogenization (American English)
hydrolysation (British English) or hydrolyzation (American English)
hydroxylation
hyemation
hyperabsorption
hyperaction
hyperalimentation
hyperchlorination
hypercivilisation (British English) or hypercivilization (American English)
hyperconcentration
hypercorrection
hyperdeification
hyperdistention also hyperdistension
hyperexaltation
hyperexcretion
hyperfunction

hyperimmunisation (British English) or hyperimmunization (American English)

hyperinfection
hyperinflation
hyperinnervation
hyperinvolution same as superinvolution
hyperlactation
hypermedication
hypernutrition
hyperoxygenation
hyperperfection
hyperpigmentation

hyperpolarisation (British English) or hyperpolarization (American English)

hyperproduction (British English) also superproduction (American English)

hypersalivation
hypersecretion

hypersensitisation (British English) or hypersensitization (American English)

hypersophistication
hyperstimulation
hyperventilation

hypervitalisation (British English) or hypervitalization (American English)

hyphenation
hyphenisation (British English) or hyphenization (American English)
hypnotisation (British English) or hypnotization (American English)
hypohydration
hypomyelination also called hypomyelinogenesis

hyposensitisation (British English) or hyposensitization (American English)

hypostatisation (British English) or hypostatization (American English)
hypothecation
hypoventilation
idealization (American English) or idealisation (British English)
ideation
identification
idolisation (British English) or idolization (American English)
ignition
ignoration
illaqueation (Rare)
illation
illecebration (Rare) also allurement
illegalisation (British English) or illegalization (American English)
illegitimation also illegitimateness
illimitation
illinition
illiquation
illocution
illumination
illustration
illutation
illuviation
imagination
imbibition
imbrication
imbution (Obsolete)
imitation also an adjective
immanation (Rare - not to be confused with emanation)
immigration
imminution (Rare) also diminution
immiseration
immiserisation (British English) or immiserization (American English)
immobilisation (British English) or immobilization (American English)
immoderation
immolation
immortalisation (British English) or immortalization (American English)
immortification (Rare)
immunisation (British English) or immunization (American English)
immunopotentiation
immunoprecipitation
immunoreaction
immunoregulation
immuration also immurement
immutation (Rare) also alteration, mutation
impaction
impanation
imparkation
impartation also impartment
impastation
impatronisation (British English) or impatronization (American English)
impedition (Obsolete) also hindrance
impenetration
imperception
imperfection
imperforation
impersonation

impersonalisation (British English) or impersonalization (American English)

impersonification also embodiment
imperturbation
impetration
impignoration (Obsolete)
impinguation (Obsolete)
implantation
implementation
impletion
implication
imploration
importation
imposition
imposthumation also written impostumation
imprecation
impregnation
impreparation (Obsolete)
improbation 1. same as disapprobation 2. (Scottish English, Law)
improperation (Obsolete)
impropriation
improvisation
impugnation (Obsolete) same as impugnment
impuration (Obsolete)
imputation
inaction
inactivation
inactuation (Obsolete) also operation
inadaptation
inadequation (Obsolete)
inaffectation (Rare) also naturalness
inanimation also inanimateness
inanitiation (Rare) same as inanition
inanition
inapplication
inappreciation
inaquation (Obsolete)
inarticulation also inarticulateness
inattention
inauguration
inauration
incameration
incantation
incapacitation
incapsulation or encapsulation
incarceration
incardination
incarnation
incarnification same as incarnation
incatenation (Rare)
incaution
incavation
incensation
incentivation
incentivisation (British English) or incentivization (American English)
inception
inceration
inchoation
incineration
incircumscription
incircumspection
incitation
incivilisation (British English) or incivilization (American English)
inclamation (Obsolete) same as exclamation
inclination
incommodation (Obsolete) also inconvenience
incompensation
incompletion
inconcoction (Obsolete)
inconnection same as disconnection
inconsideration also inconsiderateness
incontentation (Obsolete) same as discontentment
incoordination or inco-ordination
incoronation
incorporation
incorrection (Obsolete) also impropriety
incorruption (Archaic)
incrassation
incremation same as cremation
increpation (Obsolete) also reproof
incretion
incrimination
incrustation or encrustation
incubation
inculcation
inculpation
incultivation (Obsolete)
inculturation same as enculturation
incumbition (Rare) same as incubation
incurvation also incurvature
indagation
indefatigation (Obsolete) same as indefatigableness
indemnification
indemnization (American English) or indemnisation (British English)
indenisation (British English) or indenization (American English)
indentation
indention
indetermination
indevotion
indexation
indication
indiction
indigenisation (British English) or indigenization (American English)
indigestion
indigitation (Obsolete)
indignation
indirection
indiscretion
indiscrimination
indisposition
indistinction
individualisation (British English) or individualization (American English)
individuation
indoctrination
indorsation (Obsolete) same as indorsement, endorsement
induction
induplication
induration
industrialization (American English) or industrialisation (British English)
inebriation
ineducation
inequation
inertion (Rare)
inescation (Obsolete) also allurement
inexecution
inexertion
inexpectation
infantilisation (British English) or infantilization (American English)
infarction
infatuation
infection
infeodation same as infeudation
infestation
infeudation
infibulation
infiltration
infixation
inflammation
inflation
inflection
infliction
information
infraction
infraposition
infrigidation (Obsolete)
infucation
infumation
infurcation
infuriation
infuscation
ingannation (Obsolete) also deception
ingemination
ingeneration
ingestion
ingraftation or engraftation also ingraftment or engraftment
ingratiation
ingravidation (Obsolete)
ingurgitation
inhabilitation
inhabitation
inhalation
inhiation (Rare)
inhibition
inhumation
initialisation (British English) or initialization (American English)
initiation
inition (Obsolete)
injection
injunction
inlagation
innervation
innovation
innutrition
inobservation (Rare)
inoccupation
inoculation
inoperation (Obsolete)
inordination (Obsolete)
inorganisation (British English) or inorganization (American English)
inosculation
inquartation
inquietation (Obsolete) also disturbance
inquination (Obsolete)
inquiration (Dialectal) same as inquiry
inquisition
Inquisition, the
insalivation
insanitation
insatisfaction (Obsolete)
inscription
insculption (Obsolete) same as inscription
insectation (Obsolete)
insection also incision
insecution (Obsolete)
insemination
insertion
insiccation
insinuation
insition same as ingraftment
insolation (not to be confused with insulation)
insolubilisation (British English) or insolubilization (American English)
inspection
inspiration
inspissation
installation
instantiation
instauration
instigation
instillation (not to be confused with installation)
instimulation same as stimulation
instinction (Obsolete) also instinct, inspiration
institution

institutionalisation (British English) or institutionalization (American English)

instruction
instrumentation
insubjection
insubordination
insuccation (Obsolete) also maceration
insufflation
insulation (not to be confused with insolation)
insultation (Archaic - noun) also insult (as a noun)
insurrection
insusurration (Obsolete)
integration
integumation
integumentation
intellection

intellectualisation (British English) or intellectualization (American English)

inteneration
intensation (Rare) same as intensification
intensification
intentation (Obsolete) same as intention
intention
interabsorption
interaction
interadaption
interaffiliation
interagglutination
interanimation
interapplication
interarboration (Rare)
interassociation
interattrition
interbastation (Obsolete) also patchwork (as a noun)
intercalation
intercalibration
intercelebration
interception
intercirculation

intercivilisation (British English) or intercivilization (American English)

intercolonisation (British English) or intercolonization (American English)

intercolumniation
intercombination
intercommunication
interconnection also interconnectedness
interesterification same as transesterification
interincorporation
intercorrelation
interdetermination
interdiction
interdigitation
interelection (this word is an adjective only)
interfederation
interfenestration
interfiltration
interfriction
interfunction (this word is an adjective only)
intergeneration
intergradation
interinhibition

interiorization (American English) or interiorisation (British English) also internalization (Am Eng) or internalisation (Br Eng)

interjection
interjunction
interlamination
interlaudation
interlineation
interlocation
interlocution
interlucation (Obsolete)
interlunation
intermeation (Obsolete)
intermediation
intermention (this word is a verb only)
intermication (Rare)
intermigration
intermination (Obsolete) also threat
intermodification
intermodulation
intermotion
intermutation

internalization (American English) or internalisation (British English) also interiorization (Am Eng) or interiorisation (Br Eng)

internation

internationalisation (British English) or internationalization (American English)

internection (Obsolete) also intimate connection
interosculation
interpellation (not to be confused with interpolation)
interpenetration
interpolation
interpopulation
interposition
interpretation
interpunction also punctuation
interpunctuation
interradiation
interramification
interreflection
interrelation
interreticulation
interrogation
interruption
intersection
intersertion (Obsolete)
interspiration (Obsolete)
interstation (this word is an adjective only)
interstimulation
interstition (Obsolete) also interval
interstratification
interstriation
intersubstitution
intervariation
intervention
intervisitation
intervolution

inthronisation or enthronisation (British English) or inthronization or enthronization (American English) also enthronement

intimation
intimidation
intinction
intitulation
intoleration
intonation
intortion misspelling of intorsion
intoxication
intrapopulation
intravasation
intrication (Obsolete) also entanglement
introduction
introflection (American English) or introflexion (British English)
introjection
introreception
introspection
introsusception same as intussusception
intubation
intuition
intussusception
inunction
inundation
inusitation (Rare) also disuse (as a noun)
inustion (Obsolete)
invagination
invalidation
invection (Obsolete) also invective (as a noun)
invention
investigation
inveteration (Rare)
invigilation
invigoration
invitation (noun, adjective) also invitational (noun, adjective)
invocation
involution
invultuation
iodation
iodination
iodisation (British English) or iodization (American English)
ionization (American English) or ionisation (British English)
iridisation (British English) or iridization (American English)
irisation
irradiation
irrecognition
irreconciliation
irreduction
irreflection
irregeneration (Obsolete) also unregeneracy
irrelation
irresolution
irretention also irretentiveness
irrigation
irritation
irroration
irruption (not to be confused with eruption)
isoagglutination
isoimmunisation (British English) or isoimmunization (American English)
isolation
isomerisation (British English) or isomerization (American English)
italicisation (British English) or italicization (American English)
itemisation (British English) or itemization (American English)
iteration
itineration
jactation
jactitation
jaculation
jargonisation (British English) or jargonization (American English)
jawbation (Informal) same as jobation
jellification
jobation
jollification
journalisation (British English) or journalization (American English)
jubilation
Judaisation (British English) or Judaization (American English)
judication
junction
juration
jurisdiction
justification
juxtaposition
kaolinisation (British English) or kaolinization (American English)
karstification
kation same as cation
keratinisation (British English) or keratinization (American English)
Kurdification
labanotation also Laban dance notation system
labefactation same as labefaction
labefaction
labialisation (British English) or labialization (American English)
laceration
lachrimation or lachrymation same as lacrimation
laciniation
lacrimation
lactation
laevorotation
laicisation (British English) or laicization (American English)
lallation
lamellation
lamentation
lamination
lancination
laniation (Rare)
lapidation
lapidification
lapillation
largition (Obsolete) also largess or largesse
latensification
lateralisation (British English) or lateralization (American English)
laterisation (British English) or laterization (American English)
Latinisation (British English) or Latinization (American English)
lation (Obsolete) also transportation, conveyance
latitation (Obsolete)
latration (Obsolete)
laudation
laureation
lavation
laxation
lection
legalization (American English) or legalisation (British English)
legation
legislation

legitimation also legitimization, legitimatization (American English) or legitimisation, legitimatisation (British English)

lenition
levation
levigation
leviration
levitation
levorotation
lexicalisation (British English) or lexicalization (American English)
libation
liberalization (American English) or liberalisation (British English)
liberation
libidinisation (British English) or libidinization (American English)
libration
licentiation
licitation (Rare)
ligation
lignification
limation
limitation
lineamentation
linearisation (British English) or linearization (American English)
lineation
lionisation (British English) or lionization (American English)
liposuction
liquation
liquefaction
liquidation
literalisation (British English) or literalization (American English)
literation
lithification also called induration
litigation
lixiviation
lobation
lobulation
localization (American English) or localisation (British English)
location
locomotion
loculation
locution
lorication
lotion
lubrication
lubrifaction also lubrification
luctation (Rare)
lucubration
ludification
lumination (Obsolete) same as illumination
lunation
lurcation (Obsolete) also gluttony, gormandizing
lustration
lutation
luteinisation (British English) or luteinization (American English)
luxation
luxuriation
lyophilisation (British English) or lyophilization (American English)
lysogenisation (British English) or lysogenization (American English)
macadamisation (British English) or macadamization (American English)
maceration
machicolation
machination
macroevolution
macroinstruction
mactation (Obsolete)
maculation
madefaction (Rare)
madefication
maderisation (British English) or maderization (American English)
magnetization (American English) or magnetisation (British English)
magnetostriction
magnification
majoration (Obsolete)
malabsorption
malacissation (Obsolete)
maladaptation
maladministration
malappropriation
malassimilation
malaxation
malconformation also written maleconformation
malconstruction
maldistribution
maleconformation same as malconformation
malediction
malefaction
maleficiation (Obsolete)
maleformation same as malformation
malexecution
malformation also written maleformation
malfunction also a verb
malleation
malnutrition
malobservation
malocclusion
malposition
malpresentation
malversation
mamillation or mammillation
mammonisation (British English) or mammonization (American English)
manation (Obsolete)
mancipation (Obsolete) same as slavery
manducation
manifestation
manipulation
manucaption
manuduction
manuscription
marbleisation (British English) or marbleization (American English)

margination also marginalization (American English) or marginalisation (British English)

marination
marketisation (British English) or marketization (American English)
marmoration (Rare)
marsupialisation (British English) or marsupialization (American English)
mathematisation (British English) or mathematization (American English)
martyrisation (British English) or martyrization (American English)
masculinisation (British English) or masculinization (American English)
mastication
masturbation
materialisation (British English) or materialization (American English) materiation (Obsolete)
matriculation
maturation
maximation same as maximization
maximisation (British English) or maximization (American English)
mechanisation (British English) or mechanization (American English)
mechanoreception
mediation
mediatisation (British English) or mediatization (American English)
medicalisation (British English) or medicalization (American English)
medication
meditation
megacorporation also called megacompany
melanisation (British English) or melanization (American English)
melioration
mellification

melodramatisation (British English) or melodramatization (American English)

memorialisation (British English) or memorialization (American English)
memorization (American English) or memorisation (British English)
mendication also mendicancy
menostation same as menostasis
menstruation
mensuration
mentation
mention also a verb
menstruation
mercerisation (British English) or mercerization (American English)
mercurification
mercuration
mercurialisation (British English) or mercurialization (American English)
merorganization (Rare)
mesmerisation (British English) or mesmerization (American English)
metacognition
metafiction
metallisation (British English) or metallization (American English)
methanation
methodisation (British English) or methodization (American English)
methylation
metrication also metrification

metropolitanisation (British English) or metropolitanization (American English)

microcirculation
microdetection
microdissection
microdistillation
microencapsulation
microevolution
microgeneration
microincision
microinjection
microinstruction
microinvasion
micromanipulation

microminiaturisation (British English) or microminiaturization (American English)

micromotion
micronation
micronisation (British English) or micronization (American English)
microperation
micropropagation
microprojection
micropublication
micropulsation
microreproduction
Microstation®
miction same as urination
micturition
midsection
migration
militarization (American English) or militarisation (British English)
mineralisation (British English) or mineralization (American English)
miniation
miniaturisation (British English) or miniaturization (American English)
miniconvention
minidevaluation
minification
minimalisation (British English) or minimalization (American English)
minimisation (British English) or minimization (American English)
minination
ministration
minivacation
minoration (Rare)
misacceptation
misadaptation
misadministration
misaffection (Obsolete)
misallegation
misallocation
misappellation
misapplication
misappreciation
misappropriation
misarticuclation
misassertion
misassumption
misattribution
miscalculation
miscaption (this word is a verb only)
miscegenation

mischaracterisation (British English) or mischaracterization (American English)

miscitation
misclassification
miscollocation
miscommunication
miscomputation
misconception
misconnection
misconsecration
misconstruction
miscorrection
miscorrelation
miscreation
misdescription
misdevotion
misdirection
misdisposition
misdistribution
misedition (Obsolete)
miseducation
miseration (Obsolete) same as commiseration
misestimation
misevaluation
misexplanation
misexplication
misexposition
misformation
misfunction same as malfunction
misidentification
misimagination
misinformation
misinstruction
misintention
misinterpretation
mislactation
mislocation
misnavigation
misoperation
misordination
misorganisation (British English) or misorganization (American English)
misorientation
mispagination
misperception
misposition (this word is a verb only)
mispronunciation
misproportion
mispunctuation
misquotation
misrecollection
misredemption
misregistration
misrelation
misrepresentation
missionisation (British English) or missionization (American English)
missuggestion (Obsolete)
missummation
missyllabification
mistion (Obsolete) same as mixture
mistradition
mistranscription
mistranslation
misutilisation (British English) or misutilization (American English)
misvocalisation (British English) or misvocalization (American English)
mitigation
mixtion
mobilisation (British English) or mobilization (American English)
moderation
modernization (American English) or modernisation (British English)
modification
modulation
molestation
mollification
monetization (American English) or monetisation (British English)
mongrelisation (British English) or mongrelization (American English)
monition
monopolisation (British English) or monopolization (American English)
monstration
moralization (American English) or moralisation (British English)
moration (Rare)
mordication (Rare)
morigeration (Obsolete) same as obsequiousness
morsitation (Obsolete)
mortification
morulation
motation (Obsolete) same as motion
motion also a verb
motivation
motorisation (British English) or motorization (American English)
mouillation
moxibustion
mucronation
multicorporation
multidestination (this word is an adjective only)
multifunction (this word is an adjective only)
multiinfection
multination (this word is an adjective only)
multiplication
multisection (this word is an adjective only)
mummification
mundation (Obsolete)
mundification
muneration (Obsolete)
municipalisation (British English) or municipalization (American English)
munition also a verb
murmuration
musculation
musicalisation (British English) or musicalization (American English)
mussitation
mutarotation
mutation
mutilation
mutteration (Obsolete)
mutualisation (British English) or mutualization (American English)
mutuation (Obsolete)

myelination also myelinisation (British English) or myelinization (American English)

mylonitisation (British English) or mylonitization (American English)
mystification
mythicisation (British English) or mythicization (American English)
mythologisation (British English) or mythologization (American English)