Words ending in -TION (n-z)

Words ending with the suffix -TION Letters N-Z

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



naleadministration same as maladministration
namation
nanisation (British English) or nanization (American English)
narcotisation (British English) or narcotization (American English)
narration
nasalisation (British English) or nasalization (American English)
nasturtion same as nasturtium
natation
nation
nationalisation (British English) or nationalization (American English)
naturalization (American English) or naturalisation (British English)
nauseation
navigation
nazification or Nazification
nebulisation (British English) or nebulization (American English)
necessitation
negation
neglection (Obsolete) same as negligence
negotiation
neologisation (British English) or neologization (American English)
nervation also nervature same as venation
nervimotion
nervulation same as nervuration
nervuration also nervulation
neuration also venation
neurosecretion
neurotisation (British English) or neurotization (American English)
neurulation
neutralization (American English) or neutralisation (British English)
nictation also nictitation
nidation
nidification (Rare)
nidulation
nigrification
nitration
nitrification
nitrogenisation (British English) or nitrogenization (American English)
nitrosation
nitrosylation
nobilitation (Obsolete)
noctambulation also noctambulism same as somnambulism
noctivagation
nodation (Rare)
nodulation
nolition
nomadisation (British English) or nomadization (American English)
nominalisation (British English) or nominalization (American English)
nomination
nonabdication
nonabjuration
nonabolition
nonabsentation
nonabsolution
nonabsorption
nonabstention
nonacceleration
nonacceptation
nonaccommodation
nonaccretion
nonaccumulation
nonaction
nonactivation
nonadaptation
nonadjudication
nonadoption
nonaffectation
nonaffiliation
nonaffirmation
nonalienation
nonallegation
nonamputation
nonanimation
nonannexation
nonanticipation
nonapplication
nonappreciation
nonassertion
nonassimilation
nonassociation
nonassumption
nonattention same as inattention
nonattestation
nonauthentication
noncapitulation
noncastigation
noncausation
noncelebration
noncertification
noncirculation
nonclassification
noncoagulation
noncollaboration
noncollection
noncombination
noncombustion
noncommemoration
noncommiseration
noncommunication
noncompetition (this word is an adjective only)
noncompletion
noncomputation
nonconcentration
noncondemnation
noncondensation
nonconduction
nonconfirmation
nonconfrontation
noncongestion
nonconnection
nonconsecration
nonconservation
nonconsideration
nonconsolidation
nonconstruction (British English)
nonconsumption
noncontamination
noncontention
noncontinuation
noncontradiction
nonconviction
noncooperation or nonco-operation
noncorporation
noncorrelation
noncultivation
nondamnation
nondebilitation
nondecalcification
nondeceleration
nondeception
nondeclaration
nondecoration
nondedication
nondeduction
nondefalcation
nondefection
nondeflation
nondeformation
nondegeneration
nondegradation
nondelegation
nondeliberation
nondelineation

nondemobilisation (British English) or nondemobilization (American English)

nondemolition
nondenunciation
nondepletion
nondeportation
nondeposition
nondepravation
nondepreciation
nondeprivation
nonderogation
nondesecration
nondestruction
nondetention
nondeterioration
nondetermination
nondeviation
nondictation
nondifferentiation
nondigestion
nondilution
nondiscrimination
nondisintegration
nondisjunction
nondispensation
nondissemination
nondissolution
nondistillation
nondistortion
nondistribution
nondiversification
nondomination
nonduplication
noneducation
nonejection
nonelection
nonelectrification
nonelevation
nonelimination
nonelongation
nonelucidation
nonemancipation
nonembarkation
nonemendation
nonemigration
nonemulation
nonenunciation
nonequalisation (British English) or nonequalization (American English)
nonequation
nonerection
nonerudition
noneruption
nonevacuation
nonevaluation
nonevaporation
noneviction
nonexaction
nonexaggeration
nonexcavation
nonexculpation
nonexecution
nonexemplification
nonexemption
nonexertion
nonexhibition
nonexhortation
nonexpiation
nonexpiration
nonexploitation
nonexportation
nonextermination
nonextinction
nonextortion
nonextraction
nonextradition
nonextrication
nonexultation
nonfermentation
nonfiction
nonfixation
nonfluctuation
nonformation
nonformulation
nonfortification

nonfraternisation (British English) or nonfraternization (American English)

nonfriction
nonfruition
nonfrustration
nongermination
nongraduation
nonhallucination
nonidentification
nonillumination
nonillustration
nonimmigration

nonimmunisation (British English) or nonimmunization (American English)

nonimpartation also nonimpartment
nonimplication
nonimportation
nonimposition
noninclination
nonincrimination

nonindustrialisation (British English) or nonindustrialization (American English)

noninfection
noninflation
noninformation
noninfraction
noninoculation
noninsertion
noninstitution
nonintegration
noninterpolation
noninterposition
nonintervention
nonirrigation
nonliberation
nonlimitation
nonliquidation
nonlitigation
nonlixiviation
nonlocation
nonmanifestation
nonmaturation
nonmediation
nonmigration
nonministration
nonmitigation
nonmotion
nonmotivation
nonmultiplication
nonnarration
nonnavigation
nonnegation
nonnegotiation
nonnomination
nonnotification
nonnullification
nonobjectification
nonobjection
nonobservation
nonoccupation
nonopposition
nonordination
nonorganisation (British English) or nonorganization (American English)
nonorientation
nonostentation

nonoxidation also nonoxidisation (British English) or nonoxidization (American English)

nonpacification
nonpalliation
nonparticipation
nonpenetration
nonperception
nonperfection
nonpermeation
nonperpetration
nonperpetuation also nonperpetuance
nonpersecution
nonpersonification
nonpreparation
nonprescription (this word is an adjective only)
nonpresentation
nonpreservation
nonprobation
nonprocreation
nonproduction also an adjective
nonprohibition
nonprojection
nonproliferation also an adjective
nonprolongation
nonpromotion
nonpromulgation
nonpronunciation
nonpropagation
nonpropitiation
nonprorogation
nonproscription
nonprosecution
nonprotection
nonprotestation
nonprotraction
nonprovocation
nonpublication
nonpulsation
nonpunctuation
nonpurgation
nonpurification
nonqualification
nonradiation
nonratification

nonrationalisation (British English) or nonrationalization (American English)

nonreaction
nonrealisation (British English) or nonrealization (American English)
nonrecitation
nonreclamation
nonrecognition
nonrecollection
nonreconciliation
nonredemption
nonreflection
nonreformation
nonregulation
nonrejection
nonrelaxation
nonremuneration
nonrendition
nonrepresentation
nonrequisition
nonresolution
nonrestoration
nonresumption
nonresurrection
nonresuscitation
nonretaliation
nonrevaluation
nonrumination
nonsalutation
nonsalvation
nonsanctification
nonsanction
nonsaponification
nonsatiation
nonsatisfaction
nonsaturation
nonsecretion
nonsegmentation
nonsegregation
nonselection
nonsensation
nonseparation
nonsequestration
nonsignification
nonsimplification
nonsimulation
nonsolicitation
nonsolidification
nonsolution

nonspecialisation (British English) or nonspecialization (American English)

nonspecification
nonspeculation
nonsterilisation (British English) or nonsterilization (American English)
nonstimulation
nonstipulation
nonstultification
nonstylization
nonsubjectification
nonsubjection
nonsubjugation
nonsublimation
nonsubscription
nonsubstantiation
nonsubstitution
nonsubtraction
nonsuction
nonsuggestion
nonsyncopation
nonsyndication
nontaxation
nontemptation
nontermination
nontoleration
nontraction
nontradition
nontranscription
nontransformation
nontranslocation
nontransportation
nontransposition
nonunification
nonutilisation (British English) or nonutilization (American English)
nonvaccination
nonvacillation
nonvalidation
nonvariation
nonvegetation
nonventilation
nonverification
nonvibration
nonvindication
nonviolation
nonvitiation
nonvocalisation (British English) or nonvocalization (American English)
nonvolition

normalization (American English) or normalisation
(British English)

notarisation (British English) or notarization (American English)
notation
notification
notion
novation
novelisation (British English) or novelization (American English)
nuclearisation (British English) or nuclearization (American English)
nucleation
nudation
nudification
nugation (Rare)
nullification
numeration
nummulation
nuncupation (Obsolete)
nundination (Obsolete)
nunation also written nunnation
nutation
nutrication (Obsolete)
nutrition
obdormition
obduction (not to be confused with abduction)
obduration (Obsolete) also obduracy, hardheartedness
oberration (Obsolete)
obfirmation (Obsolete) also obduracy, hardheartedness
obfuscation
objectification
objection
objectivation
objectivisation (British English) or objectivization (American English)
objuration
objurgation
oblation
oblatration
oblectation (Rare)
obligation
obliquation (Rare)
obliteration
obluctation (Obsolete) also resistance, opposition
obnubilation
obreption
obscuration
obsecration
observation
obsigillation (Obsolete)
obsignation
obsoletion same as obsolescence
obstetrication (Obsolete) also midwifery
obstination (Obsolete) also obstinacy
obstipation
obstriction (Rare)
obstruction
obstupefaction (Obsolete) same as stupefaction
obtenebration (Obsolete)
obtention
obtestation
obtrectation (Obsolete) also slander, calumny
obtruncation (Rare)
obturation
obumbration
obvention (Obsolete)
obviation
obvolution
occecation (Rare)
occultation
occupation
occultation
ocellation (not to be confused with oscillation)

oesophagoplication (British English) or esophagoplication (American English)

oestruation
officiation
offuscation (Obsolete) same as obfuscation
ogganition (Rare)
olfaction
oligomerisation (British English) or oligomerization (American English)
omination (Obsolete)
oneration (Obsolete)
opacification
operation
opination (Obsolete) also supposition
opitulation (Obsolete)
oppignoration
oppilation
oppletion (Obsolete)
opposition
oppugnation (Rare) also opposition
opsonation (Obsolete)
opsonification same as opsonization
opsonisation (British English) or opsonization (American English)
optation (Obsolete)
optimalization (American English) same as optimization
optimisation (British English) or optimization (American English)
option
oration
orbation (Obsolete) also bereavement
orbiculation
orchestration
ordination
organization (American English) or organisation (British English)
orientation
origination
ornamentation

orthogonalisation (British English) or orthogonalization (American English)

oscillation
oscitation
osculation
osmoregulation
ossification
ostentation
outquestion (this word is a verb only)
outstation
ovation
overabsorption
overacceleration
overaccentuation
overaccumulation
overaction
overaddiction
overaffirmation
overaffliction
overaggravation
overagitation
overanimation
overapplication
overappreciation
overassertion
overassumption
overattention

overcapitalisation (British English) or overcapitalization (American English)

overcaution also a verb

overcentralisation (British English) or overcentralization (American English)

overcircumspection
overcivilisation (British English) or overcivilization (American English)
overclassification
overcoloration (American English) or overcolouration (British English)

overcommercialisation (British English) or overcommercialization (American English)

overcommunication
overcompensation
overconcentration
overcondensation
overconsideration
overconsumption
overcorrection
overcorruption
overcultivation
overdecoration
overdedication
overdeliberation
overdenunciation
overdeliberation
overdifferentiation
overdilution
overdistention also overdistension
overdistortion
overdiversification
overeducation
overelaboration
overemulation
overestimation
overevaluation
overexaggeration
overexertion
overexpectation
overexplanation
overexploitation
overextraction
overextrapolation
overfertilisation (British English) or overfertilization (American English)
overfrustration

overgeneralisation (British English) or overgeneralization (American English)

overidentification
overillustration
overimitation
overimportation
overinclination

overindividualisation (British English) or overindividualization (American English)

overindustrialisation (British English) or overindustrialization (American English)

overinflation
overinstruction

overintellectualisation (British English) or overintellectualization (American English)

overintensification
overinterpretation
overirrigation
overlactation
overlaudation

overliberalisation (British English) or overliberalization (American English)

overlubrication
overmagnification
overmedication

overmodernisation (British English) or overmodernization (American English)

overmodification
overmultiplication
overmystification

overnormalisation (British English) or overnormalization (American English)

overnutrition
overobjectification
overoxidation

overpenalisation (British English) or overpenalization (American English)

overpopulation
overpreparation
overprescription
overpresumption
overprocrastination
overproduction
overproportion also a verb
overprotection
overprotraction
overprovocation
overqualification

overrationalisation (British English) or overrationalization (American English)

overreaction
overreflection
overregulation
overrepresentation

oversaturation
oversecretion
oversedation
oversimplification
oversolidification
oversophistication
overrestriction
overretention
overspecialisation (British English) or overspecialization (American English)

overspeculation
overstimulation
oversubscription
overtaxation

overtheorisation (British English) or overtheorization (American English)

overurbanisation (British English) or overurbanization (American English)

overutilisation (British English) or overutilization (American English)
overvaluation
overvariation
overventilation
oviposition
ovulation

oxidation also oxidization (American English) or oxidisation (British English)

oxidoreduction also oxidation-reduction
oxygenation

ozonation same as ozonisation (British English) or ozonization (American English)

ozonification
ozonisation (British English) or ozonization (American English)
pabulation (Obsolete)
pacation
pacification
paction (Rare)
paganisation (British English) or paganization (American English)
pagination
palatalisation (British English) or palatalization (American English)
palification (Rare)
palletisation (British English) or palletization (American English)
palliation
palmation
palmification (Obsolete)
palpation
palpitation
pandation (Obsolete)
pandiculation
panelation or panellation (Obsolete)
panification
papulation
paralysation (British English) or paralyzation (American English)

parameterisation (British English) or parameterization (American English)

parametrisation (British English) or parametrization (American English) same as parameterization

parasitisation (British English) or parasitization (American English)
parentation (Obsolete)
participation also an adjective
particularisation (British English) or particularization (American English)
partition also a verb
participation
parturition
passivation
passivisation (British English) or passivization (American English)
pasteurization (American English) or pasteurisation (British English)
patefaction
patination
patrialisation (British English) or patrialization (American English)
patriation
patrocination (Obsolete)
patronisation (British English) or patronization (American English)
pauperisation (British English) or pauperization (American English)
pectination
pectisation (British English) or pectization (American English)
peculation

pedestrianisation (British English) or pedestrianization (American English)

pediculation
pedunculation
pejoration
pelletisation (British English) or pelletization (American English)
peltation
pelvifixation
penalisation (British English) or penalization (American English)
penetration
penicillation
peptisation (British English) or peptization (American English)
peptonisation (British English) or peptonization (American English)
peragration (Obsolete)
perambulation
perception
percolation
perdition
perduration (Archaic) same as perdurance
peregrination
peremption (Obsolete)
perennation
pererration (Rare)
perfectation
perfection
perflation (Obsolete)
perfoliation
perforation
periclitation (Obsolete)
periodisation (British English) or periodization (American English)
perlocution
perlustration (Archaic)
permeation
permistion also written permixtion
permutation
pernoctation
peroration
peroxidation
perpetration
perpetuation also perpetuance
perpotation (Obsolete)
perquisition (Rare)
perscrutation
persecution
perseveration
personalisation (British English) or personalization (American English)
personation
personification
perspiration
perterebration (Obsolete)
perturbation
pervaporation
pervestigation (Obsolete)
pervigilation (Obsolete)
pestilation
petition also a verb
petrifaction also petrification
petrification same as petrifaction
phacoemulsification or phakoemulsification
philosophation (Obsolete)
phlogistication
phonation
phonemicisation (British English) or phonemicization (American English)
phoneticisation (British English) or phoneticization (American English)
phonetisation (British English) or phonetization (American English)
phonoreception
phosphation same as phosphatization
phosphatization (American English) or phosphatisaton (British English)
photocoagulation
photocomposition also called phototypesetting, phototypography
photoconduction
photodecomposition
photodisintegration
photodissociation
photodistribution
photoduplication
photoexcitation
photoinactivation
photoinduction
photointerpretation
photoionisation (British English) or photoionization (American English)

photoisomerisation (British English) or photoisomerization (American English)

photolysation (British English) or photolyzation (American English)
photooxidation
photophosphorylation

photopolymerisation (British English) or photopolymerization (American English)

photoproduction
photoradiation
photoreaction
photoreactivation
photoreception
photoreduction
photoreproduction
photorespiration

photosensitization (American English) or photosensitisation (British English)

phytoremediation same as bioremediation
piation (Obsolete)
pictorialisation (British English) or pictorialization (American English)
picturisation (British English) or picturization (American English)
pidginisation (British English) or pidginization (American English)
pigmentation
pignoration
piloerection
pinguefaction
piscation (Obsolete)
pistillation or pestillation (Obsolete) same as pestilation
pixilation or pixillation
placation
placentation
planation
planification
plantation also an adjective
plasmation (Rare)
plasticisation (British English) or plasticization (American English)
platinisation (British English) or platinization (American English)
plebification (Rare)
plication also plicature
pluralisation (British English) or pluralization (American English)

podsolisation or podzolisation (British English) or podsolization or podzolization (American English)

polarization (American English) or polarisation (British English)
politicalisation (British English) or politicalization (American English)
politicisation (British English) or politicization (American English)
politzerisation (British English) or politzerization (American English)
pollicitation

pollination also pollinization (American English) or pollinisation (British English)

pollution
polycondensation
polyesterification
polymerisation (British English) or polymerization (American English)
ponderation (Rare)
pontification
popularization (American English) or popularisation (British English)
population
porphyrisation (British English) or porphyrization (American English)
porrection
portion also a verb
position also a verb
postabortion (this word is an adjective only)
postamputation (this word is an adjective only)
postchlorination (this word is an adjective only)

postcivilisation (British English) or postcivilization (American English) (this word is an adjective only)

post-combustion
postconception
postconvention (this word is an adjective only)
postdevaluation (this word is an adjective only)
postelection (this word is an adjective only)
posterisation (British English) or posterization (American English)
postgraduation
postillation
postincarnation
postinfarction
postinfection (this word is an adjective only)
postinjection (this word is an adjective only)
postinoculation (this word is an adjective only)
postirradiation
postisolation (this word is an adjective only)
postlegitimation
postliberation (this word is an adjective only)
postordination (this word is an adjective only)
postpollination (this word is an adjective only)
postposition
postproduction
postredemption
post-Reformation
post-Restoration
postresurrection
poststimulation (this word is an adjective only)
postulation
postvaccination (this word is an adjective only)
potation
potentiation
potion
praefloration (British English) or prefloration (American English)
praefoliation (British English) or prefoliation (American English)
praelection (British English) or prelection (American English)
pragmatisation (British English) or pragmatization (American English)
preaccommodation
preaccumulation
preaccusation
preachification
preacquisition
preaction
preadaptation
preaddition (not to be confused with preedition)
preadministration
preadmonition
preadoption
preaffiliation
preaffirmation
preaffliction
preaggravation
preagitation
preallegation
prealteration
preamalgamation
preambition
preambulation (Rare, Obsolete)
preapperception
preapplication
preapprobation
preassumption
prebenediction
precalculation
precancellation
precation
precaution
precelebration
preception (Rare) also precept
precertification
precipitation
precirculation
precivilisation (British English) or precivilization (American English)
preclassification
precognition
precollection
precoloration (American English) or precolouration (British English)
precombination
precombustion
precommunication
precompilation
precompletion
preconcentration
preconception
preconcertion
precondemnation
precondensation
precondition also a verb
preconduction
preconfiguration
preconfirmation
precongestion
precongratulation
preconisation (British English) or preconization (American English)
preconnection
preconsecration
preconsideration
preconsolidation
preconstruction
preconsultation
preconsumption
precontention
preconvention
preconviction
precorruption
precultivation
predamnation
predation
predeception
predeclaration
prededication
prededuction
predefinition
predelegation
predeliberation
predelineation
predemonstration
predepletion
predeportation
predepreciation
predeprivation
prederivation
predescription
predesertion
predesignation
predestination
predestitution
predestruction
predection
predetention
predetermination
predevaluation also an adjective
predevotion
predication
prediction
predigestion
predilection
prediminution
predirection
prediscrimination
predisposition
predisputation
predisruption
predissatisfaction
predissolution
predistribution
predomination
predonation
preduplication
preedition (not to be confused with preaddition)
preeducation
preelection or pre-election also an adjective
preelimination
preemancipation
preemotion
preemption or pre-emption
preenumeration
preerection
preeruption
preestimation
preevaporation
preexamination
preexception
preexcitation
preexecution
preexemption
preexhaustion
preexhibition
preexistimation (Obsolete)
preexpectation
preexpedition
preexpiration
preexplanation
preexposition
preextinction
preextraction
prefabrication
prefecundation
prefermentation
prefertilisation (British English) or prefertilization (American English)
prefiguration
prefinition (Obsolete)
prefixation
prefloration (American English) or praefloration (British English)
prefoliation (American English) or praefoliation (British English)
preformation
preformulation
prefoundation
prefunction
pregeneration
pregraduation
pregustation (Rare)
preidentification
preignition
preillumination
preillustration
preimitation
preimmigration
preimplantation
preimportation
preimposition
preincorporation
preindemnification
preindisposition
preinduction
preinfection
preinflection
preinfliction
preinhabitation
preinitiation
preinquisition
preinscription
preinsertion
preinsinuation
preinsulation
preinspection
preinstallation
preinstillation (not to be confused with preinstallation)
preinstruction
preintention
preinterpretation
preintimation
preinvention
preinvestigation
preinvitation
preinvocation
preirrigation
prejudication
prejurisdiction
prejustification
prelation
prelection (American English) or praelection (British English)
prelibation
preliberation
preliquidation
prelitigation
premanifestation
premedication
premeditation
premention also a verb
premigration (this word is an adjective only)
premisrepresentation
premodification
premonition
premonstration
premortification
premotion
premunition also called coinfectious immunity
prenegotiation
prenomination
prenotification
prenotion same as preconception
prensation (Obsolete)
prenunciation (Obsolete - not to be confused with pronunciation)
preobjection
preobligation
preobservation
preobstruction
preoccultation
preoccupation
preoperation
preopposition
preoption
preordination
preorganisation (British English) or preorganization (American English)
preparation
preparticipation
prepartition also a verb
prepenetration
prepetition also a verb
preponderation
preportion (this word is a verb only)
preposition
prepreparation
preproduction (also an adjective)
preprohibition
prepromotion
preprovocation
prepublication also an adjective
prequalification
prequestion (this word is a verb only)
prequotation
prerealisation (British English) or prerealization (American English)
prerecognition
prerecommendation
prereconciliation
preredemption
prereformation
preregistration
prerejection
preremuneration
prerepresentation
preresolution
pre-Restoration (this word is an adjective only)
prerestoration (this word is an adjective only)
prerevolution (this word is an adjective only)
presanctification
presatisfaction
prescription
preselection
presensation (Obsolete)
presentation
presention (Obsolete) same as presension
preseparation
preservation
presignification
presolicitation
presolution
prespecification
prespeculation
pressurisation (British English) or pressurization (American English)
prestation
prestidigitation
prestigiation (Obsolete) same as prestidigitation
prestimulation
prestriction (Obsolete)
presubjection
presubscription
presubstitution
presuggestion
presumption
presupposition
pretabulation
pretemptation
pretention (Archaic) same as pretension
preterition
pretermination (this word is an adjective only)
pretervection (Rare)
pretransaction
pretranscription
pretranslation
pretransportation
prettification
preunification
preutilisation (British English) or preutilization (American English)
prevacation also an adjective
prevaccination
prevaluation
prevariation
prevarication
prevegetation
prevention
preverification
previolation
principiation (Archaic)
prioritisation (British English) or prioritization (American English)
privation
privatisation (British English) or privatization (American English)
proabolition (this word is an adjective only)

proabortion or pro-abortion also called pro-choice (these words are adjectives only)

proacquisition
proaction (this word is an adjective only)
proadministration (this word is an adjective only)
proadoption (this word is an adjective only)
proagitation (this word is an adjective only)
proalteration (this word is an adjective only)
proannexation (this word is an adjective only)
proappropriation (this word is an adjective only)
proarbitration (this word is an adjective only)
proassociation (this word is an adjective only)
proauction (this word is an adjective only)
proautomation (this word is an adjective only)
probation
proception (Obsolete) same as preoccupation

procentralisation (British English) or procentralization (American English)

proclamation
procommutation (this word is an adjective only)
procompetition (this word is an adjective only)
proconservation (this word is an adjective only)
proconsultation (this word is an adjective only)
procontinuation (this word is an adjective only)
proconvention (this word is an adjective only)
proconviction (this word is an adjective only)
procrastination
procreation
procuration
prodeportation (this word is an adjective only)
prodissolution (this word is an adjective only)
prodistribution (this word is an adjective only)
prodition (Obsolete) also treachery
production
proeducation (this word is an adjective only)
proelectrification (this word is an adjective only)
proelimination
proevolution (this word is an adjective only)
proexperimentation (this word is an adjective only)
profanation
profection (Obsolete)
profederation (this word is an adjective only)

professionalisation (British English) or professionalization (American English)

profiction (this word is an adjective only)
profligation (Obsolete)
progeneration (Rare) also propagation
prognostication
progradation
prohibition
proimmigration (this word is an adjective only)

proindustrialisation (British English) or proindustrialization (American English) (this word is an adjective only)

prointegration (this word is an adjective only)
prointervention (this word is an adjective only)
proirrigation (this word is an adjective only)
projection
projectisation (British English) or projectization (American English)
prolation

proletarianisation (British English) or proletarianization (American English)

proliferation
prolification
prolongation
prolocution 1. (Rhetoric) 2. (Obsolete)
promanation (Obsolete)
promoderation (this word is an adjective only)
promotion
promulgation
pronation
pronegotiation (this word is an adjective only)

pronominalisation (British English) or pronominalization (American English)

pronunciation
propagation
properation (Obsolete)
propination (Obsolete)
propitiation
proportion
proposition
proprioception
propublication (this word is an adjective only)
propugnation (Obsolete)
propulsation (Obsolete)
propylitisation (British English) or propylitization (American English)
proration
proreconciliation (this word is an adjective only)
proreption
prorestoration (this word is an adjective only)
prorogation
proruption (Rare)
proscription
prosecution
proselytisation (British English) or proselytization (American English)
prosemination (Obsolete)
prospection also foresight
prosternation (Obsolete) also dejection
prostitution
prostration
prosubscription (this word is an adjective only)
prosubstitution (this word is an adjective only)
protaxation (this word is an adjective only)
protection
protestation
protonation
protraction
protradition (this word is an adjective only)
protuberation
provaccination (this word is an adjective only)
provection

provincialisation (British English) or provincialization (American English)

provocation
proximation
Prussianisation (British English) or Prussianization (American English)
pseudosolution
pseudosophistication
publication
pullulation
pulpifaction
pulsation
pulveration
pulverization (American English) or pulverisation (British English)
punctation
punction
punctuation
punctulation
puncturation also acupuncture (as a noun)
punition also punishment
pupation
purgation
purification
pustulation
putrefaction also putrification

putrification also putrefaction
pyeloplication
quadripartition
quadrisection
quadruplication also quadruplicature
qualification
quantification
quantisation (British English) or quantization (American English)
quantitation
quantization (American English) or quantisation (British English)
quartation
quassation
question also a verb
quiritation (Obsolete)
quotation
racemation
racemisation (British English) or racemization (American English)
raciation
radialisation (British English) or radialization (American English)
radiation
radicalization (American English) or radicalisation (British English)
radication
radioimmunoprecipitation
radiolocation
radioprotection
ramification
ramisection
rancidification
randomisation (British English) or randomization (American English)
rarefaction
rarification (Rare) same as rarefaction
ratification
ratihabition (Obsolete)
ratiocination
ration also a verb
rationalisation (British English) or rationalization (American English)
reabsorption also resorption (in one sense of the word)
reacceleration
reacclamation
reaccreditation
reaccumulation
reaccusation
reacidification
reacquisition
reaction
reactivation
readaptation
readeption (Obsolete)
readdition
readjudication
readoption
readvocation
reaffiliation
reaffirmation
reafforestation
reaggravation
reaggregation
reagitation
realienation
realization (American English) or realisation (British English)
reallegation
reallocation
realteration
reamalgamation
reamputation
reanimation
reannexation
reannotation
reapplication
reapportion (this word is a verb only)
reappropriation
rearbitration
rearticulation
reassertion
reassignation
reassimilation
reassociation
reassumption
reattraction
reattribution
reaudition
reauthentication
reauthorisation (British English) or reauthorization (American English)
rebaptisation (British English) or rebaptization (American English)
reboation (Rare)
rebullition (Rare)
recalcitration
recalculation
recalibration
recanalisation (British English) or recanalization (American English)
recancellation
recantation
recapitalisation (British English) or recapitalization (American English)
recapitulation
recaption
recaution (this word is a verb only)
recelebration
recentralisation (British English) or recentralization (American English)
reception
recertification
recidivation
reciprocation
recirculation
recitation
reclamation
reclassification
reclination
recoagulation
recoction
recodification
recognition

recognisation (British English) or recognization (American English) same as recognition

recollection
recolonisation (British English) or recolonization (American English)
recoloration (American English) or recolouration (British English)
recombination
recommendation

recompensation 1. (Obsolete) same as recompense (as a noun) 2. (Scottish English, Law)

recompilation
recomposition
recomputation
reconcentration
reconception

reconceptualisation (British English) or reconceptualization (American English)

reconciliation
recondemnation
recondensation
recondition (this word is a verb only)
reconfiguration
reconfirmation
reconfiscation
reconfrontation
reconnection
reconsecration
reconsideration
reconsolidation
reconstitution
reconstruction
reconsultation
recontamination
reconvention
reconviction
recordation
recorporification (Rare)
recreation
recrimination
recrystallisation (British English) or recrystallization (American English)
rectification
rection
recubation (Obsolete) also recumbence, recumbency
recultivation
recuperation
recurvation
recusation
redaction
redargution
reddition
redeclaration
redecoration
rededication
redefection
redefinition
redelegation
redeliberation

redemocratisation (British English) or redemocratization (American English)

redemonstration
redemption
redepreciation
redescription
redesignation
redetermination
redhibition
redigestion
redintegration
redirection
redisposition
redissection
redissolution
redistillation
redistribution
redition (Obsolete)
reduction
reduplication
reedification
reedition
reeducation
reelection also an adjective
reelectrification
reelevation
reembarcation same as reembarkation
reemigration
reenaction
reenumeration
reenunciation
reerection
reeruption
reescalation
reestimation
reevacuation
reevaluation
reexamination
reexcavation
reexecution
reexhibition
reexplanation
reexplication
reexploration
reexportation
reexposition
refaction
refamiliarisation (British English) or refamiliarization (American English)
refection
refederalisation (British English) or refederalization (American English)
refederation
refertilisation (British English) or refertilization (American English)
reflation
reflection
refluctuation also refluence
refocillation (Obsolete)
reforestation
reforestisation (British English) or reforestization (American English)
reformation
Reformation
reformulation
refortification
refoundation
refraction
refrenation (Obsolete)
refrication (Obsolete)
refrigeration
refunction (this word is a verb only)
refutation
regelation
regeneration
regermination
regimentation
regionalisation (British English) or regionalization (American English)
registration
regularization (American English) or regularisation (British English)
regulation
regurgitation
rehabilitation
reharmonisation (British English) or reharmonization (American English)
rehibition

rehospitalisation (British English) or rehospitalization (American English)

rehumiliation
rehydration
reidentification
reification
reignition
reillumination
reillustration
reimplantation
reimportation
reimposition
reimpregnation
reinauguration
reincarnation
reincorporation
reindication
reindoctrination
reinduction

reindustrialisation (British English) or reindustrialization (American English)

reinfection
reinfestation
reinfiltration
reinflation
reinjection
reinnervation
reinoculation
reinsertion
reinspection
reinspiration
reinstallation
reinstation also reinstatement
reinstitution

reinstitutionalisation (British English) or reinstitutionalization (American English)

reinstruction
reintegration
reintermediation
reinterpretation
reinterrogation
reinterruption
reintervention
reintroduction
reinvention
reinvestigation
reinvigoration
reinvitation
reirrigation
reisolation
reiteration
rejection
rejustification
rejuvenation
relation
relativisation (British English) or relativization (American English)
relaxation
relegation
relevation (Obsolete - not to be confused with revelation)
reliction
reliquidation
relitigation
relocation
relubrication
reluctation
remagnetisation (British English) or remagnetization (American English)
remanifestation
remastication

rematerialisation (British English) or rematerialization (American English)

remediation
rememoration
remention (this word is a verb only)
remigation (Archaic)
remigration
remilitarisation (British English) or remilitarization (American English)
remineralisation (British English) or remineralization (American English)
remobilisation (British English) or remobilization (American English)
remodernisation (British English) or remodernization (American English)
remodification
remonetisation (British English) or remonetization (American English)
remonstration
remoralisation (British English) or remoralization (American English)
remotion
remotivation
remultiplication
remuneration

renationalisation (British English) or renationalization (American English)

renaturation
renavigation
rendition
renegation
renegotiation
renidification
renomination
renormalisation (British English) or renormalization (American English)
renotation
renotification
renovation
renullification
renunciation
reobligation
reobservation
reoccupation
reoperation
reorchestration
reordination
reorganization (American English) or reorganisation (British English)
reorientation
reoxidation
repagination
reparation
repartition also a verb
repartotion
repatriation
repedation (Obsolete)
reperception
repetition
re-petition (this word is a verb only)
replantation
repletion
replication
repolarisation (British English) or repolarization (American English)
repopularisation (British English) or repopularization (American English)
repopulation
reportion (this word is an adjective only)
reposition also a verb
repostulation
representation

repressurisation (British English) or repressurization (American English)

repristination
reprivatisation (British English) or reprivatization (American English)
reprobation
reproclamation
reproduction
repromulgation
reproportion (this word is a verb only)
reptation

republicanisation (British English) or republicanization (American English)

republication
repudiation
repullulation
repunctuation
repurification
reputation
requalification
requestion (this word is a verb only)
requisition
reradiation
reregistration
reregulation
resanction (this word is a verb only)
rescription
resection
resegregation
reselection
resensation
reseparation
reservation
resignation
resilition (Rare) also resilience
resinification
resocialisation (British English) or resocialization (American English)
resolicitation
resolidification
resolution
resonation
resorption
respecification
respection (Obsolete)
respiration
restagnation (Obsolete) same as stagnation
restation (this word is a verb only)
restauration (Obsolete) same as restoration
restimulation
restinction (Obsolete)
restipulation
restitution
restoration
restriction
resubjection
resublimation
resubscription
resudation
resumption
resupination
resurrection
resuscitation

resynchronisation (British English) or resynchronization (American English)

resystematisation (British English) or resystematization
(American English)

retaliation
retardation
retaxation
retection (Obsolete)
retention
reticulation
retortion
retractation
retraction
retractation
retranscription
retransformation
retranslation
retransplantation
retribution
retroaction
retrocognition
retrocopulation
retrodeviation
retrodiction
retroduction
retroflection also retroflexion
retrogradation
retrojection
retroreflection
retrospection
retrovaccination
reunification
reunition (Rare)
reutilisation (British English) or reutilization (American English)
revaccination
revalidation
revalorisation (British English) or revalorization (American English)
revaluation

revascularisation (British English) or revascularization (American English)

revegetation
revelation
revendication (Rare)
reventilation
reverberation
reverification
revibration
reviction (Obsolete)
revindication
reviolation
revirgination same as revirginization

revirginisation (British English) or revirginization (American English) also called secondary virginity, revirgination

revisitation
revisualisation (British English) or revisualization (American English)
revitalisation (British English) or revitalization (American English)
revivification
revocation
revolution
rhetorication (Obsolete) also rhetorical amplification
rhythmisation (British English) or rhythmization (American English)
rigidification
ritualisation (British English) or ritualization (American English)
rixation (Obsolete)
roboration (Obsolete)
robotisation (British English) or robotization (American English)
rogation
Romanisation (British English) or Romanization (American English)
romanticisation (British English) or romanticization (American English)
roration (Rare)
rotation
roundaboutation same as circumlocution
routinisation (British English) or routinization (American English)
royalisation (British English) or royalization (American English)
rubefaction
rubification
rubrication
ructation
ruction
ruggedisation (British English) or ruggedization (American English)
ruination
rumblegumption (Scottish English), Cookery)
rumgumption (Scottish English) also good sense
rumination
rummlegumption (Scottish English) also common sense
runcation (Obsolete)
ruption
ruralisation (British English) or ruralization (American English)

Russianisation (British English) or Russianization (American English) also called Russification

rustication
saburration
saccharification
saccharisation (British English) or saccharization (American English)
sacculation
sacralisation (British English) or sacralization (American English)
sacration (Obsolete) same as consecration
sagination (Rare)
salification
salination (Rare, Obsolete)
salinisation (British English) or salinization (American English)
salivation
saltation
salutation
salvation
sanation (Obsolete) also healing, curing
sanctification
sanction also a verb

sanguification same as haematopoiesis, haemopoiesis (British English) or hematopoiesis, hemopoiesis (American English)

sanitation
sanitisation (British English) or sanitization (American English)
saponification
sarculation
satiation
sation (Obsolete)
satirisation (British English) or satirization (American English)
satisfaction
saturation
scandalisation (British English) or scandalization (American English)
scarification
scatteration
scenarisation (British English) or scenarization (American English)
schematisation (British English) or schematization (American English)

schillerisation (British English) or schillerization (American English) also written incorrectly schilerization (Am Eng)

scintillation
sciscitation (Obsolete)
sclerotisation (British English) or sclerotization (American English)
scontion (British English) same as scoinson
scorification
scrimption (British English)
scrutation (Obsolete) same as scrutiny
scutellation
secretion
section also a verb
sectionalisation (British English) or sectionalization (American English)
sectionisation (British English) or sectionization (American English)
sectorisation (British English) or sectorization (American English)
secularization (American English) or secularisation (British English)
secundation (Rare) also prosperity
securitisation (British English) or securitization (American English)
sedation
sedimentation
sedition
seduction also seducement
segmentation
segregation
sejunction (Obsolete)
selection
self-abomination
self-accusation
self-administration
self-admiration
self-adulation
self-affirmation
self-amputation
self-appreciation
self-approbation
self-assumption
self-castigation
self-combustion
self-commendation
self-communication
self-condemnation
self-confirmation
self-conservation
self-consumption
self-contamination
self-cultivation
self-damnation
self-dedication
self-definition
self-deflation
self-degradation
self-dejection
self-denigration
self-deprivation
self-description
self-desertion
self-destruction
self-digestion
self-direction
self-disapprobation
self-discrimination
self-dissatisfaction
self-dissection
self-dissociation
self-dissolution
self-donation
self-duplication
self-elaboration
self-elation
self-election
self-emancipation
self-emasculation
self-estimation
self-evaluation
self-exaggeration
self-exaltation
self-exculpation
self-exertion
self-exhibition
self-expatriation
self-explication
self-extermination
self-extinction
self-exultation
self-felicitation
self-fermentation
self-flagellation
self-formation
self-friction
self-fruition
self-humiliation
self-imitation
self-impregnation
self-indignation
self-inflation
self-inoculation
self-inspection
self-instruction
self-integration
self-interpretation
self-interrogation
self-intoxication
self-introduction
self-invention
self-ionisation (British English) or self-ionization (American English)
self-laceration
self-laudation
self-levitation
self-lubrication
self-maceration
self-manifestation
self-motion
self-mutilation
self-objectification
self-observation
self-occupation
self-origination
self-oxidation
self-penetration
self-perception
self-pollution
self-preparation
self-presentation
self-projection
self-promotion
self-propagation
self-quotation
self-recollection
self-reflection
self-reformation
self-representation
self-sanctification
self-sedimentation
self-sophistication
self-stimulation
self-subjection
self-subjugation
self-suggestion
self-taxation
self-transformation
self-tuition
self-valuation
self-variation
self-vendition
self-vexation
self-vindication
semiabstraction
semidestruction
semidomestication
semifiction
semi-intoxication
semination
seminification (Rare)
semipalmation
semispeculation
semivitrification
sensation

sensationalisation (British English) or sensationalization (American English)

sensitisation (British English) or sensitization (American English)
sensualisation (British English) or sensualization (American English)

sentimentalisation (British English) or sentimentalization (American English)

sentisection
separation
sepelition (Obsolete) also burial
seposition (Obsolete - not to be confused with supposition)
septation
sequestration
serialization (American English) or serialisation (British English)
seriation
sericitisation (British English) or sericitization (American English)

sermocination (Obsolete) also sermonising (British English) or sermonizing (American English)

serpentinisation (British English) or serpentinization (American English)
serration also serrature
serrulation
severation also severance
sevocation (Obsolete)
sexduction
sexploitation
sexualisation (British English) or sexualization (Obsolete)
sibilation
siccation (Rare)
sideration (Obsolete)
sigillation
sigmation
signalisation (British English) or signalization (American English)
signation (Obsolete)
signification
silicatisation (British English) or silicatization (American English)
silicification
siliconisation (British English) or siliconization (American English)
siltation
simplification
simulation
singularisation (British English) or singularization (American English)
sinuation
situation
slumpflation
socialization (American English) or socialisation (British English)
sociation 1. (Obsolete) 2. (Ecology)
solarisation (British English) or solarization (American English)
solation
solemnization (American English) or solemnisation (British English)
solicitation
solidification
solifluction (American English) also solifluxion (British English)
solmisation (British English) or solmization (American English)
solonisation (British English) or solonization (American English)
solubilisation (British English) or solubilization (American English)
solution
solvation
somnambulation
sonication
sonification
sophistication
sopition (Obsolete)
sorbition (Obsolete)
sorbitisation (British English) or sorbitization (American English)
sorption
sortation
sortition
Sovietisation (British English) or Sovietization (American English)
spallation
spargefaction (Obsolete)
specialisation (British English) or specialization (American English)
speciation
specification
spectation
speculation
speechification
sphacelation also mortification
spheroidisation (British English) or spheroidization (American English)
spiculation
spiflication or spifflication (British English, Informal, Humorous)
spiration (Obsolete)
spiritualisation (British English) or spiritualization (American English)
splenification
splenisation (British English) or splenization (American English)
spoliation
sporification
sporulation
sputation also expectoration
squamation
squassation
stabilisation (British English) or stabilization (American English)
stabulation
stagflation
stagnation
stallation (Obsolete) same as installation
standardisation (British English) or standardization (American English)
starvation also an adjective
station also a verb
stellation (Obsolete)
stercoration (Obsolete)
sterilisation (British English) or sterilization (American English)
sternutation
stiction
stigmatisation (British English) or stigmatization (American English)
stimulation
stipulation
stolonisation (British English) or stolonization (American English)
strangulation
straticulation
stratification
strepitation
striation
striction
stridulation
strobilation

strobilisation (British English) or strobilization (American English) same as strobilation

structuralisation (British English) or structuralization (American English)
structuration (British English)
strychninisation (British English) or strychninization (American English)
stultification
stupefaction
stupration
sturtion a corruption of nasturtion which is the same as nasturtium
stylisation (British English) or stylization (American English)
subaction (Obsolete)
subacumination
subadministration
subaeration
subagitation (Obsolete)
subaggregation
suballocation
subalternation
subangulation
subapprobation
subarcuation (British English)
subarration also written subarrhation
subarticulation
subassociation
subattenuation
subaudition
subcaption

subcategorisation (British English) or subcategorization (American English)

subception shortened form of subliminal perception
subcivilisation (British English) or subcivilization (American English)
subclassification
subcollection
subcommendation
subcompletion
subcondensation
subconnation
subconsideration
subconstellation
subcorporation
subdefinition
subdelegation
subdemonstration
subdentation
subdistinction
subduction
subelection
suberisation (British English) or suberization (American English)
subfeudation (British English - noun) also subfeu (noun, verb)
subfoliation
subformation
subfraction
subfumigation
subfunction
subgeneration
subgeniculation
subhastation (Rare)
subincusation (Obsolete)
subindication (Rare)
subinfection
subinfeudation
subinflammation
subinsertion
subinsinuation (British English)
subintellection (British English)
subintention
subintroduction
subinvolution
subirrigation
subjectification
subjection
subjectivisation (British English) or subjectivization (American English)
subjugation
subjunction
sublation
sublegislation
sublevation
subligation (Rare)
sublimation
sublimification
sublineation
sublition (Rare)
subluxation
submediation

subminiaturisation (British English) or subminiaturization (American English)

subministration (Obsolete)
submonition (Rare)
submunition (British English)
subnotation
suboperation
suboptimisation (British English) or suboptimization (American English)
subordination
suborganisation (British English) or suborganization (American English)
subornation
subpanation
subpartition
subpectination
subpopulation
subquestion
subreption
subrogation
subsannation (Obsolete) also derision, mockery
subsaturation
subscription
subsection
subsensation
subsidisation (British English) or subsidization (American English)
subsinnation (Rare)

subspecialisation (British English) or subspecialization (American English)

substantiation

substantivisation (British English) or substantivization (American English)

substation
substitution
substraction
substruction
subsumption
subsyndication
subtilisation (British English) or subtilization (American English)
subtraction
subtriplication
subtruncation
subundation (Obsolete) also flood, deluge
suburbanisation (British English) or suburbanization (American English)
subvaluation
subvention
subvitalisation (British English) or subvitalization (American English)
subvocalisation (British English) or subvocalization (American English)
succussation
suction also a verb
sudation also perspiration
suffixation also suffixion
sufflation
suffocation
suffumigation
suggestion
suggillation also livedo
sulcation
sulfation or sulphation
sulfonation or sulphonation
sulfuration or sulphuration

sulfurisation or sulphurisation (British English) or sulfurization or sulphurization (American English)

sulphation or sulfation
sulphonation or sulfonation
sulphuration or sulfuration

sulphurisation or sulfurisation (British English) or sulphurization or sulfurization (American English)

summarisation (British English) or summarization (American English)
summation
sumption
superabomination
superaccumulation
superacquisition
superaddition
superadministration
superadmiration
superaffiliation
superaggravation
superagitation
superalimentation
superambition
superannuation
superappreciation
superaspiration
superassertion
superassumption
superation (Archaic)
superattraction
supercaption
supercaution

supercivilisation (British English) or supercivilization (American English)

supercolumniation
supercombination
supercommendation
supercompetition

superconception (Rare) same as superfetation (American English) or superfoetation (British English)

superconduction
superconfirmation
supercongestion
supercorporation
superdecoration
superdejection
superdemonstration
superdevotion
superdirection
superdistention also superdistension
superdistribution
superdonation
superduplication
supereducation
superelevation
supererogation
superexaltation
superexcination
superexcitation
superexertion
superexpectation
superfecundation
superfetation (American English) or superfoetation (British English)
superfoliation
superformation
superfunction
superillustration
superimposition
superimpregnation
superinclination
superinduction
superinfection
superinjection
superinscription
superinstitution
superinundation
superinvolution
superjurisdiction
superjustification
superlactation
superlation (Obsolete)
superlucration (Obsolete)
supernation
supernatation
supernutrition
superobjection
superobligation
superopposition
superordination

superorganisation (British English) or superorganization (American English)

superovulation
superoxygenation
superperfection
superpopulation
superposition
superpreparation

superproduction (American English) also hyperproduction (British English)

superproportion
superpurgation
superreaction
superreflection
superreformation
superregeneration
superregulation
superremuneration
supersanction also a verb
supersatisfaction
supersaturation
superscription
supersecretion
superselection
supersemination (Obsolete)
supersolicitation

superspecialisation (British English) or superspecialization (American English)

superspecification
superspeculation
superstation
superstimulation
superstition
superstruction
supertemptation
supertoleration
supertuberation
supervention
supervexation
supervolition
supination
suppalpation (Obsolete)
supparasitation (Obsolete)
suppeditation (Obsolete)
supplantation
supplementation
suppletion
supplication
supportation (Obsolete) also support, maintenance
supposition
suppuration
supputation (Obsolete)
suraddition (Obsolete)
surculation (Obsolete - not to be confused with circulation)
surjection also onto function
surreption
surrogation
susception
suscitation (Rare)
suspection (Obsolete) same as suspicion
suspensation
suspiration
sustentation
sustention
susurration
suturation
swaption (noun) also swap (noun, verb)
syllabication
syllabification
syllogisation (British English) or syllogization (American English)
symbolisation (British English) or symbolization (American English)
symmetrisation (British English) or symmetrization (American English)
synchronisation (British English) or synchronization (American English)
syncopation
syndication
synthesisation (British English) or synthesization (American English)
syphilisation (British English) or syphilization (American English)

systematisation (British English) or systematization (American English) also systemisation (Br Eng) or systemization (Am Eng)

tabefaction
tabularisation (British English) or tabularization (American English)
tabulation
taction
taliation (Obsolete) same as retaliation
tantalisation (British English) or tantalization (American English)
tardation (Obsolete) same as retardation, delay
tarditation (Obsolete) same as tardiness
tariffication
tarnation interjection, noun also damnation, adverb also damned
tartarisation (British English) or tartarization (American English)
taxation
technicalisation (British English) or technicalization (American English)
telecommunication (noun) also telecommunications (noun, adjective)
teleportation also teleportage
teletranscription also kinescope (in one sense of the word)
temeration (Obsolete) same as temerity
temporisation (British English) or temporization (American English)
temptation
tenderisation (British English) or tenderization (American English)
tentation
tepefaction
terebration (Rare)
tergiversation
termination

territorialisation (British English) or territorialization (American English)

terrorisation (British English) or terrorization (American English)
tessellation or tesselation
testamentation (Rare)
testation (Obsolete)
testification
tetanisation (British English) or tetanization (American English)

theatricalisation (British English) or theatricalization (American English)

theorisation (British English) or theorization (American English)
thermalisation (British English) or thermalization (American English)
thermocoagulation
thermojunction also called Seebeck effect
thermoregulation
thunderation interjection
thurification
tintinnabulation
titillation
titivation or tittivation
titration
titubation
toleration
tolutation (Obsolete)
torrefaction
tortion (Obsolete) also torment, pain
tostication (Slang)
totalisation (British English) or totalization (American English)
totipalmation
toxication also poisoning
trabeation
tractation (Obsolete)
traction
tractoration same as Perkinism, metallotherapy
tradition
traduction (Rare, Obsolete) also traducement, translation
trajection
tralation (Obsolete) also trope
tralatition
tranation (Obsolete)

tranquilisation or tranquillisation (British English) or tranquilization or tranquillization (American English)

transacetylation
transaction
transactivation
transaldolation
transamidination
transanimation (Rare)
transcolation (Obsolete)
transcoloration (American English) or transcolouration (British English)
transcription
transculturation
transduction
transection
transelementation
transesterification also called interesterification
transfection
transfiguration
transfiltration
transformation
transfretation (Obsolete)
transignification
transillumination
transistorisation (British English) or transistorization (American English)
transition also a verb
translation
translavation (Obsolete)
transliteration
translocation
transmeation (Obsolete)
transmigration
transmogrification
transmutation
transnatation
transpenetration
transpiration
transplantation
transportation
transposition
transubstantiation
transudation also transudate
transumption (Rare)
transvaluation
transvasation (Obsolete)
transvection (Rare)
transvolation
traumatisation (British English) or traumatization (American English)
trepanation
trephination
trepidation
triangulation
tribulation
trichinisation (British English) or trichinization (American English)
trifluctuation (Obsolete)
trifurcation
trilateration
trilobation
tripartition
triplication
tripudiation (Rare)
trisection
tritiation
trituration
trivialisation (British English) or trivialization (American English)
tropicalisation (British English) or tropicalization (American English)
trucidation (Obsolete)
trullisation (British English) or trullization (American English)
truncation
trustification
truth-function
trutination (Obsolete)
tuberculation

tuberculination same as tuberculinisation (British English) or tuberculinization (American English)

tuberculisation (British English) or tuberculization (American English)
tubulation
tuition
tumefaction
tumultuation (Obsolete)
turbation (Obsolete)
turbination
typification
ubication (Rare)
ubiquitination
ulceration
ultimation (Rare) also ultimatum
ultion (Rare) same as vengeance
ultracentrifugation
ultrafiltration
ultraligation
ululation
umbilication
unambition (Rare)
unappreciation

uncivilisation (British English - Rare) or uncivilization (American English - Rare)

unconsolidation
uncorruption same as incorruption
unction
uncultivation
unconsecration
unconvention

undemocratisation (British English) or undemocratization (American English)

underaction
underagitation
underconsumption
underdepreciation
underdistinction
underestimation
underevaluation
underfaction

undermineralisation (British English) or undermineralization (American English)

undermotion

underorganisation (British English) or underorganization (American English)

underparticipation
underproduction
underproposition
underregistration
underrepresentation
undersatisfaction
undervaluation
undervegetation
underventilation
undetermination same as indetermination
undevotion
undulation
unexpectation (Obsolete)
unification
unionisation (British English) or unionization (American English)
unition (Obsolete)
unitisation (British English) or unitization (American English)
universalisation (British English) or universalization (American English)
univocation (Obsolete)
unjustification
unperfection (Obsolete) same as imperfection
unpremeditation
unreformation (Obsolete)
unregeneration also unregeneracy
unsanctification
unsatisfaction (Obsolete) same as dissatisfaction
unsaturation
unsophistication also unsophisticatedness
unstation (this word is a verb only)
unsubstantiation
uralitisation (British English) or uralitization (American English)
urbanization (American English) or urbanisation (British English)
urination
urtication
ustion (Rare)
ustulation
usucaption also usucapion
usurpation
usurpation
uterofixation same as hysteropexy
uterogestation
utilization (American English) or utilisation (British English)
vacation also a verb
vaccination
vacillation
vacuation (Rare) same as emptying, evacuation
vacuolation
vacuolisation (British English) or vacuolization (American English)
vaginofixation also called colpopexy, vaginopexy
valediction
validation
vallation
valorization (American English) or valorisation (British English)
valuation
vandalisation (British English) or vandalization (American English)
vaporation (Rare) same as evaporation
vaporization (American English) or vaporisation (British English)
vapulation (Obsolete)
variation
variegation

variolation also variolisation (British English) or variolization (American English)

vasifaction
vasoconstriction
vasodilatation also vasodilation
vasoformation same as angiopoiesis
vasoligation also vasoligature
vasomotion
vasorelaxation
vasosection same as vasotomy
vastation (Obsolete) also devastation
vaticination
vection
vectitation (Obsolete)
vegetation
vehiculation
velitation
vellication
venation
venditation (Obsolete)
vendition
veneration
venesection or venisection same as phlebotomy
vennation (Obsolete)
ventilation
ventrilocution same as ventriloquism
verbalisation (British English) or verbalization (American English)
verberation
verification
vermiculation
vermination

vernacularisation (British English) or vernacularization (American English)

vernalisation (British English) or vernalization (American English)
vernation
versification
vertebration also vertebrate formation
verticillation
vesication
vesicofixation
vesiculation
vexation
vexillation
viatication
vibration
victimisation (British English) or victimization (American English)
viduation (Rare) also bereavement
Vietnamisation (British English) or Vietnamization (American English)
vigesimation (Rare)
vilification
villagisation (British English) or villagization (American English)
vinculation
vindemiation (Obsolete)
vindication
vinification
vinylation
violation
virilisation (British English) or virilization (American English)
viscimation
visitation
visualisation (British English) or visualization (American English)
vitalisation (British English) or vitalization (American English)
vitaminisation (British English) or vitaminization (American English)
vitiation
vitilitigation (Obsolete)
vitrifaction also vitrification
vitrification also vitrifaction
vitriolation
vitriolisation (British English) or vitriolization (American English)
vituperation
vivification
vivisection
vocalisation (British English) or vocalization (American English)
vocation
vociferation
volatilisation (British English) or volatilization (American English)
volcanisation or vulcanisation (British English)
volitation
volition
volutation (Rare)
volution
vomition
vomiturition
votation
vowelisation (British English) or vowelization (American English)
vulcanisation (British English) or vulcanization (American English)
vulgarisation (British English) or vulgarization (American English)
vulneration (Obsolete)
weatherisation (British English) or weatherization (American English)
westernisation (British English) or westernization (American English)
winterisation (British English) or winterization (American English)
workstation or work station
xenotransplantation
yuppification
zincification
zombification
zonation