There are a total of 1641 11-letter words containing 'ion', and the number may vary in different dictionaries. You can specify the dictionary and order.
- abdications 19
- aberrations 15
- abjurations 25
- ablutionary 19
- abnegations 18
- abomination 19
- aborisation 15
- abortionist 15
- abreactions 18
- abrogations 17
- abscissions 18
- absolutions 17
- absorptions 18
- abstentions 16
- abstraction 18
- acceptation 21
- accessional 19
- accessioned 19
- acclamation 22
- acclimation 22
- accusations 19
- acetylation 18
- acidulation 18
- acquisition 25
- activations 19
- adaptations 16
- adhibitions 18
- adjunctions 27
- adjurations 23
- admirations 16
- admonitions 17
- adoptionism 19
- adoptionist 16
- adsorptions 16
- adumbration 20
- advocations 20
- aestivation 16
- affectation 21
- affectional 22
- affectioned 22
- afficionado 22
- affiliation 19
- affirmation 21
- affixations 25
- afflictions 22
- aficionadas 19
- aficionados 19
- aggradation 17
- aggravation 20
- aggregation 18
- aggressions 16
- agitational 15
- alienations 14
- alkylations 20
- allegations 16
- alleviation 18
- allocations 17
- allocutions 18
- alterations 13
- altercation 16
- alternation 14
- ambitioning 21
- ambiversion 22
- ambulations 20
- ammoniation 19
- ammunitions 20
- amputations 19
- analyzation 25
- angulations 17
- annexations 21
- annotations 14
- annulations 16
- anodization 23
- antifashion 18
- antiquation 23
- apparitions 18
- appellation 20
- application 22
- apportioned 19
- appositions 18
- approbation 21
- arbitration 15
- arpeggiones 19
- arrogations 14
- ascensional 17
- ascriptions 18
- aspirations 15
- asportation 15
- assentation 13
- assignation 15
- association 15
- assumptions 19
- astrogation 14
- atomisation 15
- atomization 24
- attentional 14
- attenuation 14
- attestation 12
- attractions 15
- attribution 16
- attritional 13
- auctioneers 16
- auditionees 14
- auditioners 14
- auditioning 17
- automations 16
- avocational 20
- basestation 15
- benediction 20
- benefaction 22
- bifurcation 22
- billionaire 17
- bilocations 19
- bioregional 18
- bipartition 18
- bisectional 19
- bombilation 22
- bombination 22
- botheration 17
- brachiation 20
- brecciation 21
- bromination 19
- butylations 19
- byelections 21
- calcination 20
- calculation 21
- calefaction 22
- calibration 19
- cancelation 20
- cannulation 19
- capitations 18
- captionless 19
- captivation 22
- carbocation 21
- carbonation 19
- carburation 19
- carburetion 19
- castigation 17
- castrations 15
- catenations 16
- cavitations 19
- celebration 19
- cementation 19
- centillions 18
- cerebration 18
- championing 26
- chionodoxas 25
- chrismation 20
- circulation 20
- coagulation 19
- coaptations 18
- coarctation 18
- cochampions 26
- codirection 19
- coeducation 20
- coevolution 21
- cofunctions 23
- cogitations 17
- cognitional 19
- collections 20
- colligation 19
- collimation 20
- collisional 18
- collocation 20
- colorations 16
- colouration 17
- combination 22
- combustions 22
- commination 22
- comminution 23
- commissions 21
- commutation 22
- compactions 24
- companioned 23
- compassions 21
- competition 21
- compilation 22
- completions 22
- complexions 29
- composition 21
- compression 21
- compulsions 23
- compunction 26
- computation 22
- conceptions 22
- concessions 19
- conclusions 21
- concoctions 22
- concretions 19
- concussions 20
- conditional 18
- conditioned 18
- conditioner 17
- condonation 18
- conductions 21
- confections 22
- confessions 19
- conflations 20
- confliction 23
- confusional 21
- confutation 20
- congelation 19
- congestions 18
- conjugation 28
- conjunction 30
- conjuration 26
- connections 20
- connexional 25
- conniptions 20
- connotation 17
- consecution 20
- consolation 17
- consumption 23
- contentions 17
- contortions 16
- contraction 19
- contraption 19
- contritions 16
- conurbation 20
- convections 23
- conventions 21
- conversions 20
- convictions 23
- convocation 23
- convolution 22
- convulsions 22
- cooperation 18
- coopetition 18
- cooptations 18
- copulations 20
- corelations 16
- coronations 16
- corotations 15
- corporation 18
- corrections 18
- correlation 16
- corrugation 18
- corruptions 19
- cortication 18
- coruscation 19
- counterions 17
- covariation 19
- creationism 18
- creationist 15
- crenelation 17
- crenulation 18
- crepitation 18
- crimination 19
- crucifixion 29
- cryptobiont 23
- culmination 21
- cultivation 21
- cumulations 21
- cunctations 20
- cupellation 21
- cushionless 19
- cuspidation 20
- cybernation 21
- cyclisation 21
- cyclization 30
- deaccession 19
- deaerations 13
- deamination 17
- debarkation 20
- decantation 17
- deceptional 20
- decimations 19
- decisioning 19
- declamation 20
- declaration 17
- declensions 18
- declination 18
- decollation 18
- decondition 18
- decorations 16
- decryptions 21
- decussation 17
- dedications 17
- defaecation 19
- defalcation 20
- defamations 19
- defecations 19
- definitions 17
- deflections 20
- defloration 17
- defoliation 17
- deformation 19
- deglutition 17
- degradation 16
- degustation 16
- dehydration 18
- deification 19
- delectation 17
- delegations 16
- delineation 15
- delusionary 17
- demarcation 19
- demolitions 17
- denegations 16
- denervation 18
- denigration 16
- denotations 14
- denudations 16
- deoxidation 21
- depilations 17
- deportation 16
- depositions 16
- depravation 20
- deprecation 19
- depredation 17
- depressions 16
- deprivation 20
- depurations 17
- deputations 17
- derationing 16
- dereliction 17
- derivations 17
- derogations 15
- descensions 17
- description 19
- desecration 16
- deselection 17
- desiccation 19
- designation 16
- desolations 14
- desorptions 16
- desperation 16
- destination 14
- destitution 14
- destruction 17
- detestation 13
- detonations 14
- detractions 16
- deuteration 14
- devaluation 19
- devastation 17
- deviational 18
- devolutions 19
- devotionals 18
- dictionally 20
- diffraction 22
- diffusional 21
- digressions 15
- dilatations 14
- dimensional 18
- dimensioned 18
- dimidiation 17
- diminutions 18
- directional 17
- discerption 19
- discissions 16
- disclusions 18
- discreation 16
- discretions 16
- discussions 17
- disfunction 21
- disillusion 16
- disjunction 27
- dislocation 17
- dismissions 16
- dispassions 16
- dispersions 16
- displosions 17
- disposition 16
- disputation 17
- disrelation 14
- disruptions 17
- dissections 16
- dissensions 14
- dissentions 14
- dissipation 16
- dissolution 15
- dissuasions 14
- distensions 14
- distentions 14
- distinction 17
- distortions 13
- distraction 16
- disunionist 15
- dithionites 15
- divagations 19
- divinations 18
- divisionism 20
- divisionist 17
- divulgation 21
- dominations 17
- dubitations 17
- duplication 21
- dysfunction 23
- ebullitions 18
- edification 19
- educational 18
- ejaculation 26
- elaboration 16
- electioneer 16
- elevational 18
- elicitation 16
- elimination 17
- elongations 16
- elucidation 18
- elutriation 14
- eluviations 18
- emaciations 18
- embarkation 22
- embrocation 21
- emendations 17
- emigrations 17
- emotionally 19
- emotionless 16
- emulsioning 20
- enamoration 16
- enchiridion 19
- encryptions 21
- encystation 18
- enervations 17
- enucleation 18
- enumeration 17
- enunciation 18
- envisioning 20
- epilimnions 20
- epoxidation 23
- equitations 22
- eradication 16
- erosionally 16
- erotization 21
- eructations 16
- escalations 16
- estimations 15
- estivations 16
- ethionamide 18
- etiolations 13
- euchologion 21
- evacuations 20
- evagination 19
- evaluations 18
- evaporation 19
- eventuation 18
- evolutional 19
- exaltations 20
- examination 23
- exaptations 22
- excavations 26
- exceptional 26
- excerptions 25
- excitations 22
- exclamation 26
- excoriation 22
- exculpation 27
- execrations 22
- executioner 23
- exfoliation 23
- exhalations 22
- exhaustions 22
- exhibitions 24
- exhortation 21
- exhumations 25
- exoneration 20
- expansional 24
- expatiation 22
- expectation 25
- expeditions 23
- expirations 22
- explanation 24
- explication 26
- exploration 23
- exportation 22
- expositions 22
- expressions 22
- expunctions 27
- expurgation 25
- exsiccation 25
- exsolutions 21
- extensional 21
- extenuation 21
- extinctions 23
- extirpation 22
- extortioner 19
- extractions 22
- extradition 20
- extrication 22
- exultations 21
- exuviations 24
- fabrication 21
- fabulations 20
- factionally 22
- fasciations 18
- fascination 19
- fashionable 21
- fashionably 23
- fashionista 17
- fecundation 21
- federations 16
- fictionally 22
- fictioneers 18
- fictionists 18
- fictionized 28
- fictionizes 27
- figurations 18
- filtrations 16
- fimbriation 21
- firestation 15
- fissionable 19
- flirtations 16
- floatations 16
- floriations 16
- fluctuation 21
- fomentation 19
- forestation 15
- formational 19
- formication 21
- formulation 20
- fornication 19
- foundations 18
- fractionate 18
- fractioning 21
- frustration 16
- fulguration 20
- fulmination 21
- fumigations 21
- functionary 22
- functioning 23
- fustigation 18
- gazillionth 27
- geminations 18
- gemmulation 22
- generations 15
- genuflexion 27
- geolocation 18
- germination 18
- gestational 15
- glaciations 18
- gleizations 24
- glutathione 18
- gradational 16
- graduations 16
- granulation 17
- gratulation 16
- gravitation 18
- habitations 17
- habituation 18
- hebetations 17
- herniations 15
- hesitations 14
- hibernation 18
- histrionics 17
- humiliation 19
- hyphenation 22
- hypolimnion 24
- hypotension 20
- idolisation 14
- idolization 23
- illocutions 18
- illusionary 17
- illusionism 18
- illusionist 15
- illuviation 19
- imagination 18
- imbibitions 21
- imbrication 21
- immigration 20
- immolations 19
- impartation 18
- impassioned 19
- impetration 18
- implication 22
- imploration 19
- importation 18
- impositions 18
- imprecation 21
- imprecision 21
- impressions 18
- imputations 19
- inattention 14
- incantation 17
- incarnation 17
- incensation 17
- incitations 16
- inclination 18
- incubations 20
- inculcation 21
- inculpation 21
- incurvation 21
- indagations 16
- indecisions 17
- indentation 15
- indexations 21
- indications 17
- indigestion 16
- indignation 17
- indirection 17
- indurations 15
- inebriation 16
- infarctions 19
- infatuation 17
- infestation 16
- infixations 23
- inflections 20
- inflexional 25
- inflictions 20
- information 19
- infractions 19
- infuriation 17
- ingressions 15
- inhalations 16
- inhibitions 18
- inhumations 19
- initiations 13
- injunctions 27
- innervation 18
- innovations 18
- innutrition 15
- inoculation 18
- inquisition 23
- inscription 19
- insertional 14
- insinuation 15
- insolations 14
- inspections 19
- inspiration 16
- instigation 15
- institution 14
- instruction 17
- insulations 15
- integration 15
- intensional 15
- intentional 15
- intentioned 15
- interaction 16
- interfusion 17
- interunions 15
- intimations 16
- intinctions 17
- intonations 14
- intubations 17
- intuitional 15
- inundations 16
- invitations 17
- invocations 20
- involutions 19
- iodinations 14
- ionizations 22
- ionospheres 17
- ionospheric 20
- irradiation 13
- irrationals 13
- irreligions 15
- irrigations 14
- irritations 12
- isethionate 14
- itemisation 15
- itemization 24
- itineration 13
- jactitation 24
- jubilations 26
- jumpstation 28
- labefaction 22
- lacerations 16
- laciniation 17
- lacrimation 19
- lacrymation 21
- lactational 17
- laicisation 16
- laicization 25
- lamentation 17
- laminations 17
- laureations 14
- legionaries 15
- legionellae 17
- legionnaire 16
- legislation 16
- levigations 19
- levitations 17
- libationary 18
- liberations 16
- librational 17
- limitations 16
- lionhearted 16
- lionisation 14
- lionization 23
- liposuction 20
- liquidation 24
- literations 13
- litigations 15
- lixiviation 24
- lobulations 18
- locomotions 19
- locutionary 19
- lubrication 20
- lucubration 21
- lustrations 14
- macerations 18
- machination 21
- maculations 20
- malediction 20
- malefaction 22
- malfunction 24
- malposition 19
- manducation 21
- manumission 20
- marchioness 20
- margination 18
- marinations 16
- marionettes 15
- mastication 18
- maturations 16
- mediational 17
- medications 19
- meditations 16
- melioration 16
- mensuration 17
- mentionable 20
- mercuration 19
- meridionals 17
- metafiction 21
- methanation 18
- methionines 18
- methylation 20
- metrication 18
- micturition 19
- midsections 19
- migrational 18
- millionaire 17
- millionfold 22
- miscaptions 21
- miscitation 18
- miscreation 18
- misdivision 20
- misfunction 23
- mislocation 19
- misposition 18
- misprisions 18
- missionized 25
- missionizer 24
- missionizes 24
- mitigations 17
- moderations 16
- modulations 18
- molestation 16
- morulations 17
- motivations 19
- moxibustion 26
- multination 18
- munitioners 17
- munitioning 20
- murmuration 20
- mutilations 17
- myelination 19
- narrational 14
- nationalise 14
- nationalism 17
- nationalist 14
- nationality 16
- nationalize 23
- nationhoods 16
- navigations 19
- negotiation 15
- neurulation 16
- nightvision 21
- nitridation 14
- nodulations 16
- nominations 17
- nondecision 18
- nonelection 18
- nonfictions 20
- nonionizing 26
- nonnational 16
- nonrational 15
- nonsolution 16
- notionality 16
- nucleations 18
- numerations 17
- nutritional 15
- obfuscation 22
- objurgation 27
- obligations 18
- obscuration 19
- obsecration 18
- observation 19
- obsessional 16
- obstipation 18
- obstruction 19
- obturations 16
- occasioning 21
- occultation 20
- occupations 22
- officiation 21
- operational 16
- opinionated 17
- opinionised 17
- opinionises 16
- opinionized 26
- opinionizes 25
- oppositions 18
- oppressions 18
- optionality 18
- orchestrion 17
- ordinations 14
- orientation 13
- origination 15
- oscillation 17
- osculations 17
- ostentation 13
- outstations 13
- overactions 19
- overcaution 20
- oviposition 19
- oxidational 21
- oxidisation 20
- oxidization 29
- oxygenation 24
- ozonisation 22
- ozonization 31
- paedication 19
- paginations 18
- palliations 17
- palpitation 19
- papilionids 20
- parishioner 17
- partitioned 16
- partitioner 15
- parturition 16
- passionless 16
- passivation 19
- patinations 16
- pavilioning 23
- pectination 19
- peculations 20
- penetration 16
- pensionable 20
- pensionless 17
- pensionnats 17
- perceptions 21
- percolation 19
- percussions 19
- perennation 17
- perfections 21
- perforation 18
- perihelions 18
- perionychia 22
- perlocution 20
- permeations 18
- permissions 18
- permutation 19
- perorations 15
- persecution 19
- personation 16
- persuasions 16
- perversions 19
- petitionary 17
- petitioners 15
- petitioning 18
- photoionize 26
- pincushions 22
- pixelations 23
- pixellation 24
- pixilations 23
- pixillation 24
- plantations 17
- pollination 18
- ponderation 17
- populations 20
- portionless 16
- positioners 15
- positioning 18
- possessions 15
- postillions 17
- posttension 16
- postulation 17
- precautions 19
- precessions 18
- preclusions 20
- predication 19
- predictions 19
- preelection 19
- preemptions 21
- prefixation 25
- prehensions 18
- preignition 18
- preinvasion 20
- prelections 19
- prelibation 19
- premonition 19
- premunition 20
- preparation 18
- preportions 18
- preposition 18
- presumption 22
- pretensions 16
- preterition 15
- preventions 20
- previsional 20
- previsioned 20
- proabortion 18
- probational 19
- probationer 18
- processions 18
- procreation 18
- procuration 19
- productions 20
- profanation 19
- professions 18
- progression 17
- prohibition 20
- projections 27
- promotional 19
- propagation 20
- propionates 18
- proportions 18
- proposition 18
- propulsions 20
- prorogation 17
- prosecution 19
- prostration 15
- protections 18
- protonation 16
- protraction 18
- protrusions 16
- provisional 20
- provisioned 20
- provisioner 19
- provocation 22
- proximation 25
- psionically 22
- publication 23
- pullulation 20
- pultrusions 18
- punctations 20
- punctuation 21
- pustulation 18
- quadrillion 25
- quaternions 23
- questionary 24
- questioners 22
- questioning 25
- quintillion 25
- radiational 14
- rapscallion 20
- rarefaction 18
- rationalise 13
- rationalism 16
- rationalist 13
- rationality 15
- rationalize 22
- reaccession 18
- reactionary 17
- reactionist 15
- readmission 16
- readoptions 16
- realisation 13
- realization 22
- reanimation 16
- reapportion 18
- reascension 16
- reassertion 12
- recantation 16
- recessional 16
- recitations 15
- reclamation 19
- recognition 18
- recondition 17
- recordation 16
- recreations 15
- redactional 17
- redemptions 19
- rediffusion 20
- redigestion 15
- redirection 16
- redivisions 17
- reductional 18
- reeducation 17
- reelections 16
- reemissions 15
- refashioned 18
- reflections 19
- reformation 18
- refractions 18
- refutations 16
- regelations 15
- regionalise 15
- regionalism 18
- regionalist 15
- regionalize 24
- regressions 14
- regulations 16
- rehydration 17
- reification 18
- reignitions 15
- reinfection 19
- reinflation 17
- reinjection 25
- reinsertion 13
- reinvasions 17
- reinvention 18
- reiteration 12
- relaxations 20
- relegations 15
- religioners 15
- religionism 18
- religionist 15
- relocations 16
- reluctation 17
- remediation 16
- remigration 17
- renovations 17
- reoperation 15
- reoxidation 20
- reparations 15
- repartition 15
- reperfusion 19
- repetitions 15
- replication 19
- repositions 15
- repressions 15
- reprobation 18
- reprovision 19
- repudiation 17
- reputations 16
- requisition 22
- reradiation 13
- rescissions 15
- resectional 16
- reselection 16
- reservation 16
- resignation 15
- resolutions 14
- resonations 13
- resorptions 15
- respiration 15
- responsions 16
- restitution 13
- restoration 12
- restriction 15
- resumptions 19
- retaliation 13
- retardation 13
- retractions 15
- retribution 16
- retroaction 15
- reunionists 14
- revaluation 18
- revelations 17
- reversional 17
- reversioner 16
- revisionary 18
- revisionism 19
- revisionist 16
- revocations 19
- revolutions 18
- rubrication 19
- ruminations 17
- rustication 16
- sacculation 20
- salicionals 17
- salivations 17
- salutations 14
- salvational 18
- sanctioning 19
- sanitations 13
- saturations 13
- secessional 16
- sectionable 19
- sectionally 19
- segregation 16
- selectional 17
- sensational 14
- separations 15
- septentrion 16
- septillions 17
- sextillions 21
- sibilations 16
- simulations 17
- situational 14
- slumgullion 22
- solmisation 16
- solmization 25
- sonications 16
- spallations 17
- speciations 18
- speculation 20
- spiculation 20
- spoliations 16
- sporulation 17
- squamations 25
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- staycations 17
- stimulation 17
- stipulation 17
- storiations 12
- stylisation 15
- stylization 24
- subaudition 18
- subdecision 20
- subdivision 21
- subductions 21
- subjections 28
- subjugation 28
- subjunction 30
- sublimation 20
- subluxation 25
- submersions 19
- submissions 19
- submunition 21
- subnational 18
- subornation 17
- subrational 17
- subregional 19
- subreptions 19
- subrogation 18
- subsections 19
- substations 16
- subsumption 23
- subtraction 19
- subventions 21
- subversions 20
- successions 19
- succussions 20
- sufferation 19
- suffixation 26
- suffocation 22
- suggestions 17
- sulfonation 18
- sulfuration 18
- summational 20
- superfusion 20
- supernation 17
- supervision 20
- supinations 17
- suppletions 20
- supposition 19
- suppression 19
- suppuration 20
- surjections 25
- suspensions 17
- suspicioned 20
- suspiration 16
- susurration 14
- syncopation 21
- syndication 19
- tabulations 17
- televisions 17
- temptations 18
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- tensionally 17
- tensionless 14
- termination 16
- tesselation 13
- thermionics 20
- titillation 14
- titivations 16
- tolerations 13
- torsionally 16
- torsionless 13
- tourbillion 18
- trabeations 15
- tradeunions 15
- traditional 14
- trajections 24
- transaction 16
- transection 16
- transfixion 23
- transfusion 17
- transitions 13
- translation 14
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- tribulation 17
- trillionths 16
- trisections 15
- triskelions 17
- tritiations 12
- trituration 13
- truncations 17
- tumefaction 22
- ulcerations 17
- uncaptioned 21
- undecillion 20
- undulations 17
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- unfashioned 20
- unification 20
- unijunction 28
- unitization 23
- unmentioned 19
- urtications 16
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- utilisation 14
- utilization 23
- vacationers 19
- vacationing 22
- vacationist 19
- vaccination 23
- vacillation 21
- vacuolation 21
- valediction 21
- validations 18
- valuational 19
- variational 17
- variegation 18
- vegetations 18
- velitations 17
- venerations 17
- venesection 20
- ventilation 18
- vermillions 21
- vermination 20
- vesications 19
- vibrational 20
- vindication 21
- visionaries 16
- visitations 16
- vivisection 23
- waystations 17
- workstation 19
- zabagliones 27
- zillionaire 23
- zwitterions 24
- bloviations 16
- coinfection 18
- ethionamids 17
- marionberry 18
- multiunions 13
- recautioned 14
- reenvisions 14
- reinfusions 14
- restationed 12
- vermilioned 17
- versionings 15
- abjunctions 22
- ablactation 15
- abolitional 13
- abstersions 13
- abstriction 15
- accubations 17
- acervations 16
- acierations 13
- acumination 15
- adscription 16
- aerostation 11
- affrication 19
- agregations 13
- alineations 11
- alligations 12
- allineation 11
- alveolation 14
- ampliations 15
- anaerobiont 13
- analysation 14
- anhelations 14
- anodisation 12
- anteversion 14
- apocopation 17
- apocynthion 21
- appetitions 15
- apportioner 15
- aprications 15
- arabisation 13
- arabization 22
- arefactions 16
- areolations 11
- arrestation 11
- aspergation 14
- astrictions 13
- attuitional 11
- balneations 13
- bioaeration 13
- bisociation 15
- bullionists 13
- cablevision 18
- camerations 15
- canceration 15
- cancioneros 15
- canulations 13
- capsulation 15
- carnationed 14
- causational 13
- cautionries 13
- cavillation 16
- championess 20
- chorisation 16
- chorization 25
- cinerations 13
- claymations 18
- coadunation 14
- coalitional 13
- coalitioner 13
- coercionist 15
- coextension 20
- cohibitions 18
- commixtions 24
- commotional 17
- communional 17
- compotation 17
- compursions 17
- consensions 13
- contusioned 14
- correptions 15
- cribrations 15
- crispations 15
- crustations 13
- cyanidation 17
- datamations 14
- dealbations 14
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- decillionth 17
- decurionate 14
- decurvation 17
- defiliation 15
- deflexional 22
- defunctions 17
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- dehortation 15
- delibations 14
- deligations 13
- delirations 12
- delusionist 12
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- denisations 12
- denitration 12
- denizations 21
- deploration 14
- deplumation 16
- despumation 16
- devotionist 15
- dialysation 15
- dialyzation 24
- dictational 14
- digestional 13
- digitations 13
- dilutionary 15
- diplobionts 16
- diremptions 16
- discursions 14
- disgestions 13
- disjections 21
- dismutation 14
- dithionates 15
- diversional 15
- divisionary 18
- dockisation 18
- dockization 27
- ebionitisms 15
- eburnations 13
- eccaleobion 17
- emanational 13
- embarcation 17
- emollitions 13
- emotionable 15
- empassioned 16
- emulsionise 13
- emulsionize 22
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- erotisation 11
- ethylations 17
- eventration 14
- exanimation 20
- excarnation 20
- excommunion 24
- excursioned 21
- expiscation 22
- expugnation 21
- factionists 16
- fashionists 17
- fertigation 15
- festination 14
- fictionised 17
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- flagitation 15
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- fluxionally 24
- fluxionists 21
- forcipation 18
- fractionary 19
- fractionise 16
- fractionize 25
- fractionlet 16
- fructuation 16
- fugitations 15
- functionals 16
- functionate 16
- fushionless 17
- fusillation 14
- futuritions 14
- gabionnades 15
- gleisations 12
- glomeration 14
- gradationed 14
- gubernation 14
- gurgitation 13
- halobiontic 18
- haplobionts 18
- hariolation 14
- histrionism 16
- horologions 15
- humectation 18
- hyperaction 21
- ignorations 12
- illiquation 20
- imitational 13
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- imminutions 15
- impanations 15
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- improbation 17
- impugnation 16
- inanimation 13
- inchoations 16
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- indictional 14
- inductional 14
- inequations 20
- inexecution 20
- inextension 18
- infeudation 15
- infusionism 16
- infusionist 14
- inquination 20
- inquiration 20
- intrusional 11
- inusitation 11
- inventional 14
- iodisations 12
- iodizations 21
- ionisations 11
- ionotropies 13
- iridisation 12
- iridization 21
- irreduction 14
- irreflexion 21
- irrelations 11
- irremission 13
- irretention 11
- jaculations 20
- judications 21
- jugulations 19
- kamelaukion 21
- kyanisation 18
- kyanization 27
- labionasals 13
- lamellation 13
- lancination 13
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- latitations 11
- legationary 15
- levirations 14
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- lorications 13
- luminations 13
- luxuriation 18
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- madefaction 19
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- malleations 13
- mamillation 15
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- maximations 22
- medallioned 15
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- misrelation 13
- missionised 14
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- mucronation 15
- munitioneer 13
- musculation 15
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- mutationist 13
- mutteration 13
- nanisations 11
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- nauseations 11
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- neglections 14
- nervuration 14
- nictitation 13
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- nitrosation 11
- nonillionth 14
- nonunionism 13
- nonunionist 11
- notionalist 11
- nummulation 15
- nuncupation 15
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- objurations 20
- obliquation 22
- obsidionary 17
- obsignation 14
- obsoletions 13
- obstriction 15
- obtestation 13
- obumbration 17
- obvolutions 16
- occasioners 15
- ocellations 13
- octillionth 16
- opinionator 13
- opinionists 13
- oppilations 15
- oscitations 13
- outpassions 13
- papulations 15
- paralimnion 15
- passionated 14
- passionates 13
- patriations 13
- pectisation 15
- pectization 24
- pejorations 20
- peptisation 15
- peptization 24
- perduellion 14
- perduration 14
- petitionist 13
- phaelonions 16
- photoionise 16
- phycobionts 23
- pignoration 14
- pillionists 13
- porrections 15
- portionists 13
- prescission 15
- presensions 13
- prestations 13
- prolocution 15
- propensions 15
- prospection 17
- protensions 13
- provections 18
- pulveration 16
- pundigrions 15
- pyramidions 19
- quartations 20
- questionees 20
- questionist 20
- racemations 15
- radications 14
- rascallions 13
- reactionism 15
- reclination 13
- recusations 13
- refectioner 16
- reflexional 21
- reinstation 11
- relationism 13
- relationist 11
- religionary 15
- religionise 12
- religionize 21
- remigations 14
- renegations 12
- reunionisms 13
- rubefaction 18
- rumbullions 15
- rumgumption 18
- saburration 13
- saginations 12
- sanctioneer 13
- sanctioners 13
- saprobionts 15
- scrunchions 18
- secretional 13
- sectionised 14
- sectionises 13
- sectionized 23
- sectionizes 22
- seditionary 15
- seminations 13
- serrulation 11
- sessionally 14
- siderations 12
- sigillation 12
- solifluxion 21
- solutioning 12
- solutionist 11
- stellionate 11
- sticharions 16
- stuprations 13
- subarration 13
- subceptions 17
- subincision 15
- subpanation 15
- sufflations 17
- sulphations 16
- superations 13
- suraddition 13
- surrogation 12
- suscitation 13
- suspicional 15
- sustentions 11
- suturations 11
- symphonions 21
- tabefaction 18
- tepefaction 18
- terebration 13
- tidivations 15
- tittivation 14
- titubations 13
- tostication 13
- toxications 20
- traditioner 12
- traductions 14
- trithionate 14
- tubulations 13
- turbination 13
- umbonations 15
- unctionless 13
- underaction 14
- unemotioned 14
- unitisation 11
- unpassioned 14
- unpensioned 14
- unportioned 14
- unsuspicion 15
- upgradation 15
- upvaluation 16
- ustulations 11
- usucaptions 15
- vapulations 16
- variolation 14
- vellication 16
- venditation 15
- venisection 16
- verberation 16
- versionists 14
- vexillation 21
- villication 16
- volitations 14
- volitionary 17
- volutations 14
- vulneration 14
- xanthations 21
There are 1641 11-letter words containing ion in the well-known word game dictionary, 1107 in the Scrabble US (US/Canada/Thailand - TWL/NWL) dictionary, and 1588 in the Scrabble UK (International - SOWPODS/CSW) dictionary, and 1219 in the Words with Friends (WWF) dictionary.
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