There are a total of 1225 10-letter words containing 'ion', and the number may vary in different dictionaries. You can specify the dictionary and order.
- abdication 18
- abductions 19
- aberration 14
- abjections 26
- abjuration 24
- abnegation 17
- abolitions 15
- abreaction 17
- abrogation 16
- abruptions 18
- abscission 17
- absolution 16
- absorption 17
- abstention 15
- accessions 17
- accordions 18
- accretions 17
- accusation 18
- actionable 18
- actionably 20
- actionless 15
- activation 18
- actuations 15
- acylations 17
- adaptation 15
- addictions 16
- additional 14
- adductions 17
- adhesional 15
- adhibition 17
- adjunction 26
- adjuration 22
- admiration 15
- admissions 15
- admonition 16
- adorations 12
- adsorption 15
- adulations 14
- advections 19
- advocation 19
- affections 20
- affixation 24
- affliction 21
- aficionada 18
- aficionado 18
- aggression 15
- agitations 13
- alienation 13
- alkylation 19
- allegation 15
- allocation 16
- allocution 17
- alteration 12
- ambitioned 18
- ambulation 19
- ammunition 19
- amputation 18
- angulation 16
- animations 15
- annexation 20
- annotation 13
- annulation 15
- anthelions 15
- apparition 17
- apportions 17
- apposition 17
- arpeggione 18
- arrogation 13
- ascensions 15
- ascription 17
- aspersions 14
- aspiration 14
- assertions 11
- assumption 18
- attentions 12
- attraction 14
- attritions 11
- auctioneer 15
- auctioning 18
- auditioned 14
- auditionee 13
- auditioner 13
- automation 15
- avocations 18
- bajillions 25
- battalions 15
- bazillions 25
- bijections 26
- billionths 18
- bilocation 18
- binational 16
- bionically 21
- bioregions 16
- bisections 17
- bloviation 19
- bolections 18
- butylation 18
- byelection 20
- capitation 17
- captioning 20
- carbanions 18
- carination 15
- carnations 15
- caseations 14
- cassations 14
- castration 14
- catenation 15
- causations 15
- cautionary 17
- cautioning 18
- cavitation 18
- centillion 17
- centurions 16
- cessations 14
- chalazions 26
- championed 23
- chelations 17
- chionodoxa 24
- ciliations 15
- citational 15
- clarioning 18
- claymation 20
- coalitions 15
- coaptation 17
- cochampion 25
- cofunction 22
- cogitation 16
- cognations 17
- cognitions 17
- coldfusion 20
- collations 16
- collection 19
- collisions 16
- collodions 17
- collusions 17
- coloration 15
- combustion 21
- commission 20
- commotions 20
- communions 22
- compaction 23
- companions 21
- compassion 20
- completion 21
- complexion 28
- compulsion 22
- conception 21
- concession 18
- concisions 18
- conclusion 20
- concoction 21
- concretion 18
- concussion 19
- conditions 16
- conduction 20
- confection 21
- confession 18
- conflation 19
- confusions 19
- congestion 17
- connection 19
- connexions 23
- conniption 19
- contagions 17
- contention 16
- contortion 15
- contrition 15
- contusions 16
- convection 22
- convention 20
- conversion 19
- conviction 22
- convulsion 21
- cooptation 17
- copulation 19
- corelation 15
- coronation 15
- corotation 14
- corrasions 14
- correction 17
- corrosions 14
- corruption 18
- cotillions 16
- counterion 16
- cremations 17
- crenations 15
- criterions 14
- cumulation 20
- cunctation 19
- cushioning 20
- damnations 16
- dandelions 15
- deaeration 12
- dealations 13
- deceptions 18
- decillions 17
- decimation 18
- decisional 16
- decisioned 16
- declension 17
- decoctions 18
- decoration 15
- decryption 20
- dedication 16
- deductions 17
- defamation 18
- defecation 18
- defections 18
- definition 16
- deflations 16
- deflection 19
- deflexions 23
- deionisers 12
- deionising 15
- deionizers 21
- deionizing 24
- dejections 24
- delegation 15
- deliration 13
- delusional 15
- demissions 15
- demolition 16
- denegation 15
- denotation 13
- dentitions 13
- denudation 15
- depictions 18
- depilation 16
- depletions 16
- deposition 15
- depression 15
- depuration 16
- deputation 16
- derationed 13
- derivation 16
- derogation 14
- descension 16
- desertions 12
- desolation 13
- desorption 15
- detections 15
- detentions 13
- detonation 13
- detorsions 12
- detraction 15
- detritions 12
- deviations 16
- devolution 18
- devotional 17
- dictations 15
- dictionary 17
- diffusions 19
- digestions 14
- digitation 14
- digression 14
- dilatation 13
- dimensions 16
- diminution 17
- directions 15
- discission 15
- disclusion 17
- discretion 15
- discussion 16
- dismission 15
- dispassion 15
- dispersion 15
- displosion 16
- disruption 16
- dissection 15
- dissension 13
- dissention 13
- dissuasion 13
- distension 13
- distention 13
- distortion 12
- dithionite 14
- divagation 18
- diversions 16
- divination 17
- divisional 17
- domination 16
- dubitation 16
- durational 14
- ebullition 17
- ecofashion 19
- ecoregions 16
- educations 16
- effluxions 26
- egressions 13
- elevations 16
- elocutions 16
- elongation 15
- eluviation 17
- emaciation 17
- emanations 15
- emendation 16
- emigration 16
- emulations 16
- emulsioned 17
- encryption 20
- enervation 16
- entropions 15
- envisioned 17
- epilations 15
- epilimnion 19
- equational 22
- equitation 21
- eructation 15
- eruditions 13
- escalation 15
- espionages 16
- estimation 14
- estivation 15
- ethionines 14
- etiolation 12
- evacuation 19
- evaluation 17
- evocations 18
- evolutions 17
- exaltation 19
- exaptation 21
- excavation 25
- exceptions 24
- excerption 24
- excisional 22
- excitation 21
- exclusions 23
- excretions 21
- excursions 22
- execration 21
- executions 22
- exemptions 24
- exhalation 21
- exhaustion 21
- exhibition 23
- exhumation 24
- expansions 22
- expedition 22
- expiations 21
- expiration 21
- explosions 22
- exposition 21
- expression 21
- expulsions 23
- expunction 26
- exsertions 18
- exsolution 20
- extensions 19
- extinction 22
- extortions 18
- extraction 21
- extrusions 19
- exudations 20
- exultation 20
- exuviation 23
- fabulation 19
- fanfiction 21
- fasciation 17
- fashioners 16
- fashioning 19
- federation 15
- fellations 16
- fictioneer 17
- fictionist 17
- fictionize 26
- figuration 17
- filiations 15
- filtration 15
- fissioning 17
- flirtation 15
- floatation 15
- floriation 15
- flotations 15
- foliations 15
- formations 17
- foundation 17
- fractional 18
- fractioned 18
- frictional 18
- fumigation 20
- functional 20
- functioned 20
- furcations 18
- fusionists 15
- gabionages 18
- ganglionic 20
- gazillions 24
- gemination 17
- gemmations 19
- generation 14
- gestations 13
- glaciation 17
- gleization 23
- gorgoneion 16
- gradations 14
- graduation 15
- gustations 14
- guttations 14
- gyrational 16
- habitation 16
- hebetation 16
- herniation 14
- hesitation 13
- histrionic 16
- hortations 13
- hydrations 16
- ideational 13
- illocution 17
- illusional 15
- imbibition 20
- imitations 14
- immersions 17
- immolation 18
- impactions 20
- impanation 18
- impassions 17
- implosions 18
- imposition 17
- impression 17
- impulsions 19
- imputation 18
- inanitions 13
- incautions 16
- inceptions 18
- incisional 16
- incitation 15
- inclusions 17
- incohesion 17
- incubation 19
- incursions 16
- indagation 15
- indecision 16
- indentions 14
- indexation 20
- indication 16
- indictions 16
- inductions 17
- induration 14
- infarction 18
- infections 18
- infixation 22
- inflations 16
- inflection 19
- inflexions 23
- infliction 19
- infraction 18
- ingestions 14
- ingression 14
- inhalation 15
- inhibition 17
- inhumation 18
- initiation 12
- injections 24
- injunction 26
- innovation 17
- insertions 12
- insolation 13
- inspection 18
- insulation 14
- intensions 13
- intentions 13
- interionic 15
- interunion 14
- intimation 15
- intinction 16
- intonation 13
- intrusions 13
- intubation 16
- intuitions 13
- inunctions 17
- inundation 15
- inventions 17
- inversions 16
- invitation 16
- invocation 19
- involution 18
- iodination 13
- iodisation 12
- iodization 21
- ionicities 14
- ionisation 12
- ionization 21
- ionopauses 15
- ionophores 16
- ionosphere 16
- irrational 12
- irreligion 14
- irrigation 13
- irritation 11
- irruptions 15
- isethionic 16
- isolations 12
- iterations 11
- jubilation 25
- junctional 26
- kazillions 26
- laceration 15
- lactations 15
- lamination 16
- laudations 14
- laureation 13
- lectionary 17
- legionella 16
- levigation 18
- levitation 16
- liberation 15
- librations 15
- limitation 15
- lineations 13
- lionfishes 17
- lionhearts 14
- liquations 22
- literation 12
- litigation 14
- lobulation 17
- locational 16
- locomotion 18
- lustration 13
- maceration 17
- maculation 19
- malathions 17
- marination 15
- marionette 14
- maturation 15
- medallions 17
- mediations 15
- medication 18
- meditation 15
- menadiones 16
- menologion 18
- mentations 15
- mentioners 15
- mentioning 18
- meridional 16
- methionine 17
- midsection 18
- migrations 16
- millionths 18
- miscaption 20
- misprision 17
- missionary 16
- missioners 14
- missioning 17
- missionize 23
- mitigation 16
- moderation 15
- modillions 17
- modulation 17
- morulation 16
- motionless 15
- motivation 18
- mullioning 20
- multiunion 18
- munitioned 17
- munitioner 16
- mutational 16
- mutilation 16
- narrations 12
- nationally 16
- nationhood 15
- nationwide 16
- navigation 18
- negational 15
- nervations 16
- nitrations 12
- nodulation 15
- nomination 16
- nonactions 16
- nonfiction 19
- nonillions 15
- notational 13
- notionally 16
- nucleation 17
- numeration 16
- nutational 14
- nutritions 13
- objections 26
- oblational 16
- obligation 17
- obsessions 14
- obtentions 15
- obtrusions 15
- obturation 15
- obversions 18
- obviations 18
- occasional 18
- occasioned 18
- occlusions 19
- occupation 21
- octillions 16
- olfactions 18
- onionskins 17
- operations 14
- opinionise 15
- opinionize 24
- opposition 17
- oppression 17
- optionally 18
- ordination 13
- orpharions 16
- osculation 16
- outstation 12
- overaction 18
- ovulations 17
- oxidations 19
- ozonations 21
- pagination 17
- palliation 16
- palmations 18
- palpations 18
- papilionid 19
- parathions 16
- partitions 14
- passionals 15
- passionate 14
- passionnel 16
- patination 15
- pavilioned 20
- peculation 19
- pedication 18
- pennillion 18
- pensionary 17
- pensioners 15
- pensioning 18
- pensionnat 16
- perception 20
- percussion 18
- perditions 15
- perfection 20
- perfusions 18
- perihelion 17
- permeation 17
- permission 17
- peroration 14
- persuasion 15
- pervasions 18
- perversion 18
- petitioned 15
- petitioner 14
- phelonions 18
- phonations 17
- pincushion 21
- pinnations 16
- pioneering 17
- pixelation 22
- pixilation 22
- placations 18
- planations 16
- plantation 16
- plications 18
- pollutions 17
- population 19
- portioning 17
- positional 15
- positioned 15
- positioner 14
- possession 14
- postilions 15
- postillion 16
- precaution 18
- precession 17
- precisions 17
- preclusion 19
- predations 15
- prediction 18
- preemption 20
- prehension 17
- prelection 18
- prelusions 16
- prenotions 15
- preportion 17
- pretension 15
- prevention 19
- previsions 18
- privations 18
- proactions 17
- probations 17
- procession 17
- production 19
- profession 17
- profusions 18
- projection 26
- prolusions 16
- promotions 17
- pronations 15
- propionate 17
- proportion 17
- propulsion 19
- prorations 14
- protection 17
- protrusion 15
- provisions 18
- pulsations 16
- pultrusion 17
- punctation 19
- purgations 17
- quaternion 22
- questioned 22
- questioner 21
- quotations 21
- radiations 12
- rationales 12
- rationally 15
- readoption 15
- rebellions 16
- recensions 15
- receptions 17
- recessions 14
- recitation 14
- reclusions 16
- recreation 14
- recursions 15
- redactions 15
- redemption 18
- redivision 16
- reductions 16
- reeditions 12
- reelection 15
- reemission 14
- refashions 16
- refections 17
- reflations 15
- reflection 18
- reflexions 22
- refraction 17
- refutation 15
- regelation 14
- regionally 17
- regression 13
- regulation 15
- reignition 14
- reinvasion 16
- rejections 23
- relational 13
- relaxation 19
- relegation 14
- relictions 15
- religioner 14
- relocation 15
- remissions 14
- renditions 13
- renovation 16
- reparation 14
- repetition 14
- repletions 15
- reposition 14
- repression 14
- repulsions 16
- reputation 15
- rescission 14
- resections 14
- resolution 13
- resonation 12
- resorption 14
- resumption 18
- retentions 12
- retraction 14
- reunionist 13
- revelation 16
- reversions 15
- revocation 18
- revolution 17
- revulsions 17
- rotational 12
- ruinations 13
- rumination 16
- salicional 16
- salivation 16
- saltations 12
- salutation 13
- salvations 16
- sanctioned 16
- sanitation 12
- satiations 11
- saturation 12
- secessions 14
- seclusions 16
- secretions 14
- sectionals 15
- sectioning 17
- seductions 16
- selections 15
- sensations 12
- separation 14
- septations 14
- septillion 16
- seriations 11
- serrations 11
- sextillion 20
- sibilation 15
- siltations 12
- simulation 16
- situations 12
- solvations 16
- sonication 15
- sortitions 11
- spallation 16
- speciation 17
- spoliation 15
- squamation 24
- squillions 23
- stagnation 14
- stanchions 17
- starvation 15
- stationary 13
- stationers 11
- stationery 13
- stationing 14
- staycation 16
- storiation 11
- striations 11
- subduction 20
- subjection 27
- sublations 16
- submersion 18
- submission 18
- subregions 17
- subreption 18
- subsection 18
- substation 15
- subvention 20
- subversion 19
- succession 18
- succussion 19
- suctioning 18
- suffusions 19
- suggestion 16
- summations 18
- supination 16
- suppletion 19
- surjection 24
- suspension 16
- suspicions 18
- tabulation 16
- tarnations 12
- television 16
- temptation 17
- tensioners 12
- tensioning 15
- testations 11
- thermionic 19
- titivation 15
- titrations 11
- titubation 15
- toleration 12
- trabeation 14
- tractional 15
- tradeunion 14
- traditions 12
- trajection 23
- transition 12
- trillionth 15
- trisection 14
- triskelion 16
- tritiation 11
- truncation 16
- ulceration 16
- ululations 15
- undulation 16
- unionising 16
- unionistic 16
- unionizing 25
- urinations 13
- urtication 15
- usucaption 19
- usurpation 16
- vacationed 19
- vacationer 18
- validation 17
- valuations 17
- variations 15
- vegetation 17
- velitation 16
- venational 17
- veneration 16
- vermilions 19
- vermillion 20
- vernations 16
- versioning 18
- vesication 18
- vibrations 18
- violations 16
- visionally 19
- visionless 16
- visitation 15
- vitiations 15
- vocational 19
- volitional 17
- waystation 16
- zabaglione 26
- zillionths 24
- zwitterion 23
- ademptions 15
- arcuations 12
- bilections 14
- bionomists 14
- caudations 13
- cautioners 12
- clarionets 12
- clavations 15
- connations 12
- darnations 11
- dentations 11
- detrusions 11
- divulsions 14
- douppionis 15
- ethionamid 16
- exertional 17
- exsections 19
- fusionisms 15
- halobionts 15
- impletions 14
- incretions 12
- ionosondes 11
- jactations 19
- lallations 10
- nictations 12
- nunnations 10
- peltations 12
- portioners 12
- prefixions 22
- preoptions 14
- recautions 12
- reenvision 13
- reinfusion 13
- restations 10
- retorsions 10
- retortions 10
- scalations 12
- sinuations 10
- strictions 12
- suffixions 23
- sulcations 12
- sulfations 13
- tellurions 10
- unionizers 19
- vallations 13
- venditions 14
- visionings 14
- abjunction 21
- abortional 12
- abstersion 12
- accensions 14
- accubation 16
- acervation 15
- acieration 12
- acroterion 12
- actionists 12
- aerobionts 12
- afflations 16
- affluxions 23
- agregation 12
- alineation 10
- alligation 11
- ampliation 14
- anhelation 13
- appetition 14
- aprication 14
- arefaction 15
- arenations 10
- areolation 10
- astriction 12
- attuitions 10
- auctionary 15
- balections 14
- balneation 12
- bandonions 13
- bullionist 12
- cameration 14
- cancionero 14
- canulation 12
- cessionary 15
- cineration 12
- coemptions 16
- cohibition 17
- commixtion 23
- compursion 16
- conational 12
- consension 12
- correption 14
- creational 12
- cribration 14
- crispation 14
- crustation 12
- curtations 12
- curvations 15
- cushionets 15
- datamation 13
- dealbation 13
- decessions 13
- decursions 13
- defluxions 21
- defunction 16
- degression 12
- delapsions 13
- delibation 13
- deligation 12
- demersions 13
- denisation 11
- denization 20
- detersions 11
- detortions 11
- diacodions 14
- diplobiont 15
- diremption 15
- discursion 13
- disgestion 12
- disjection 20
- dithionate 14
- dithionous 14
- dormitions 13
- ebionising 13
- ebionitism 14
- ebionizing 22
- eburnation 12
- ectropions 14
- editioning 12
- emications 14
- emollition 12
- emunctions 14
- enarration 10
- encolpions 14
- epinicions 14
- epinikions 16
- epulations 12
- epurations 12
- eradiation 11
- eruptional 12
- ethylation 16
- evagations 14
- evanitions 13
- evectional 15
- evitations 13
- exarations 17
- excambions 23
- exorations 17
- factionary 18
- factionist 15
- falcations 15
- fashionist 16
- faulchions 18
- fictionise 15
- flectional 15
- fluxionary 23
- fluxionist 20
- foetations 13
- fugitation 14
- fusionless 13
- futurition 13
- gabionades 14
- gabionnade 14
- galiongees 12
- gleisation 11
- grivations 14
- haplobiont 17
- hemionuses 15
- horologion 14
- ignoration 11
- illusioned 11
- immanation 14
- imminution 14
- immissions 14
- implexions 21
- inchoation 15
- inequation 19
- influxions 20
- insections 12
- intorsions 10
- intortions 10
- ionotropic 14
- irisations 10
- irrelation 10
- jaculation 19
- jawbations 22
- judication 20
- jugulation 18
- labionasal 12
- lapidation 13
- largitions 11
- latitation 10
- latrations 10
- lavational 13
- leviration 13
- libational 12
- lioncelles 12
- loculation 12
- lorication 12
- luctations 12
- lumination 12
- mactations 14
- malaxation 19
- malleation 12
- mandilions 13
- mandylions 16
- mansionary 15
- maximation 21
- militation 12
- millionary 15
- miniations 12
- missionise 12
- motionists 12
- mycobionts 19
- nanisation 10
- nanization 19
- natational 10
- nationless 10
- nauseation 10
- neglection 13
- neurations 10
- nidulation 11
- notionists 10
- obduration 13
- objuration 19
- obreptions 14
- obsidional 13
- obsoletion 12
- obventions 15
- obvolution 15
- occasioner 14
- ocellation 12
- omophorion 17
- opinionist 12
- oppilation 14
- oscitation 12
- outpassion 12
- pactioning 15
- pandations 13
- papulation 14
- passionary 15
- passioning 13
- patriation 12
- pejoration 19
- pensioneer 12
- pertusions 12
- phaelonion 15
- phycobiont 22
- pillioning 13
- pillionist 12
- pollusions 12
- porrection 14
- portionist 12
- prelations 12
- premotions 14
- presension 12
- prestation 12
- prolations 12
- prooemions 14
- propension 14
- protension 12
- provection 17
- pundigrion 14
- pyramidion 18
- quartation 19
- questionee 19
- quotitions 19
- racemation 14
- raciations 12
- radication 13
- rascallion 12
- reactional 12
- reboations 12
- recaptions 14
- recusation 12
- remigation 13
- renegation 11
- reptations 12
- reunionism 12
- revisional 13
- rhipidions 16
- ructations 12
- rumbullion 14
- sagination 11
- sanctioner 12
- saprobiont 14
- scorpionic 16
- scrunchion 17
- scutations 12
- sectionise 12
- sectionize 21
- semination 12
- sideration 11
- sigmations 13
- sociations 12
- solutional 10
- solutioned 11
- sortations 10
- spirations 12
- sponsional 12
- stasidions 11
- sticharion 15
- stupration 12
- subactions 14
- subception 16
- sufflation 16
- sulphation 15
- superation 12
- sustention 10
- suturation 10
- symbiontic 19
- symphonion 20
- synaxarion 20
- tabellions 12
- taxational 17
- tentations 10
- tidivation 14
- toxication 19
- traduction 13
- tricerions 12
- trisagions 11
- trithionic 15
- trunnioned 11
- tubulation 12
- tuitionary 13
- umbonation 14
- unionisers 10
- ustulation 10
- usucapions 14
- vacuations 15
- vapulation 15
- versioners 13
- versionist 13
- visionists 13
- volitation 13
- volutation 13
- xanthation 20
There are 1225 10-letter words containing ion in the well-known word game dictionary, 868 in the Scrabble US (US/Canada/Thailand - TWL/NWL) dictionary, and 1194 in the Scrabble UK (International - SOWPODS/CSW) dictionary, and 892 in the Words with Friends (WWF) dictionary.
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