There are a total of 324 10-letter words ending in 'ation', and the number may vary in different dictionaries. You can specify the dictionary and order.
- abdication 18
- aberration 14
- abjuration 24
- abnegation 17
- abrogation 16
- accusation 18
- activation 18
- adaptation 15
- adjuration 22
- admiration 15
- advocation 19
- affixation 24
- alienation 13
- alkylation 19
- allegation 15
- allocation 16
- alteration 12
- ambulation 19
- amputation 18
- angulation 16
- annexation 20
- annotation 13
- annulation 15
- arrogation 13
- aspiration 14
- automation 15
- bilocation 18
- bloviation 19
- butylation 18
- capitation 17
- carination 15
- castration 14
- catenation 15
- cavitation 18
- claymation 20
- coaptation 17
- cogitation 16
- coloration 15
- conflation 19
- cooptation 17
- copulation 19
- corelation 15
- coronation 15
- corotation 14
- cumulation 20
- cunctation 19
- deaeration 12
- decimation 18
- decoration 15
- dedication 16
- defamation 18
- defecation 18
- delegation 15
- deliration 13
- denegation 15
- denotation 13
- denudation 15
- depilation 16
- depuration 16
- deputation 16
- derivation 16
- derogation 14
- desolation 13
- detonation 13
- digitation 14
- dilatation 13
- divagation 18
- divination 17
- domination 16
- dubitation 16
- elongation 15
- eluviation 17
- emaciation 17
- emendation 16
- emigration 16
- enervation 16
- equitation 21
- eructation 15
- escalation 15
- estimation 14
- estivation 15
- etiolation 12
- evacuation 19
- evaluation 17
- exaltation 19
- exaptation 21
- excavation 25
- excitation 21
- execration 21
- exhalation 21
- exhumation 24
- expiration 21
- exultation 20
- exuviation 23
- fabulation 19
- fasciation 17
- federation 15
- figuration 17
- filtration 15
- flirtation 15
- floatation 15
- floriation 15
- foundation 17
- fumigation 20
- gemination 17
- generation 14
- glaciation 17
- gleization 23
- graduation 15
- habitation 16
- hebetation 16
- herniation 14
- hesitation 13
- immolation 18
- impanation 18
- imputation 18
- incitation 15
- incubation 19
- indagation 15
- indexation 20
- indication 16
- induration 14
- infixation 22
- inhalation 15
- inhumation 18
- initiation 12
- innovation 17
- insolation 13
- insulation 14
- intimation 15
- intonation 13
- intubation 16
- inundation 15
- invitation 16
- invocation 19
- iodination 13
- iodisation 12
- iodization 21
- ionisation 12
- ionization 21
- irrigation 13
- irritation 11
- jubilation 25
- laceration 15
- lamination 16
- laureation 13
- levigation 18
- levitation 16
- liberation 15
- limitation 15
- literation 12
- litigation 14
- lobulation 17
- lustration 13
- maceration 17
- maculation 19
- marination 15
- maturation 15
- medication 18
- meditation 15
- mitigation 16
- moderation 15
- modulation 17
- morulation 16
- motivation 18
- mutilation 16
- navigation 18
- nodulation 15
- nomination 16
- nucleation 17
- numeration 16
- obligation 17
- obturation 15
- occupation 21
- ordination 13
- osculation 16
- outstation 12
- pagination 17
- palliation 16
- patination 15
- peculation 19
- pedication 18
- permeation 17
- peroration 14
- pixelation 22
- pixilation 22
- plantation 16
- population 19
- punctation 19
- recitation 14
- recreation 14
- refutation 15
- regelation 14
- regulation 15
- relaxation 19
- relegation 14
- relocation 15
- renovation 16
- reparation 14
- reputation 15
- resonation 12
- revelation 16
- revocation 18
- rumination 16
- salivation 16
- salutation 13
- sanitation 12
- saturation 12
- separation 14
- sibilation 15
- simulation 16
- sonication 15
- spallation 16
- speciation 17
- spoliation 15
- squamation 24
- stagnation 14
- starvation 15
- staycation 16
- storiation 11
- substation 15
- supination 16
- tabulation 16
- temptation 17
- titivation 15
- titubation 15
- toleration 12
- trabeation 14
- tritiation 11
- truncation 16
- ulceration 16
- undulation 16
- urtication 15
- usurpation 16
- validation 17
- vegetation 17
- velitation 16
- veneration 16
- vesication 18
- visitation 15
- waystation 16
- accubation 16
- acervation 15
- acieration 12
- agregation 12
- alineation 10
- alligation 11
- ampliation 14
- anhelation 13
- aprication 14
- areolation 10
- balneation 12
- cameration 14
- canulation 12
- cineration 12
- cribration 14
- crispation 14
- crustation 12
- datamation 13
- dealbation 13
- delibation 13
- deligation 12
- denisation 11
- denization 20
- eburnation 12
- enarration 10
- eradiation 11
- ethylation 16
- fugitation 14
- gleisation 11
- ignoration 11
- immanation 14
- inchoation 15
- inequation 19
- irrelation 10
- jaculation 19
- judication 20
- jugulation 18
- lapidation 13
- latitation 10
- leviration 13
- loculation 12
- lorication 12
- lumination 12
- malaxation 19
- malleation 12
- maximation 21
- militation 12
- nanisation 10
- nanization 19
- nauseation 10
- nidulation 11
- obduration 13
- objuration 19
- ocellation 12
- oppilation 14
- oscitation 12
- papulation 14
- patriation 12
- pejoration 19
- prestation 12
- quartation 19
- racemation 14
- radication 13
- recusation 12
- remigation 13
- renegation 11
- sagination 11
- semination 12
- sideration 11
- stupration 12
- sufflation 16
- sulphation 15
- superation 12
- suturation 10
- tidivation 14
- toxication 19
- tubulation 12
- umbonation 14
- ustulation 10
- vapulation 15
- volitation 13
- volutation 13
- xanthation 20
There are 324 10-letter words ending in ation in the well-known word game dictionary, 219 in the Scrabble US (US/Canada/Thailand - TWL/NWL) dictionary, and 317 in the Scrabble UK (International - SOWPODS/CSW) dictionary, and 241 in the Words with Friends (WWF) dictionary.
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