There are a total of 1791 10-letter words containing 'io', and the number may vary in different dictionaries. You can specify the dictionary and order.
- abdication 18
- abductions 19
- aberration 14
- abiogenist 16
- abjections 26
- abjuration 24
- abnegation 17
- abolitions 15
- abreaction 17
- abrogation 16
- abruptions 18
- abscission 17
- absolution 16
- absorption 17
- abstemious 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
- aeciospore 16
- aerobioses 13
- aerobiosis 13
- aetiologic 16
- 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
- ameliorate 14
- ammunition 19
- amphibious 22
- amputation 18
- angiogenic 19
- angiograms 18
- angiosperm 19
- angulation 16
- animations 15
- annexation 20
- annotation 13
- annulation 15
- anteriorly 14
- anthelions 15
- antibioses 14
- antibiosis 14
- antibiotic 17
- anxiolytic 24
- apiologies 16
- apparition 17
- apportions 17
- apposition 17
- areligious 14
- arpeggione 18
- arrogation 13
- arteriolar 11
- arterioles 11
- ascensions 15
- ascription 17
- aspersions 14
- aspiration 14
- assertions 11
- assumption 18
- attentions 12
- attraction 14
- attritions 11
- auctioneer 15
- auctioning 18
- audiobooks 19
- audiogenic 18
- audiograms 17
- audioguide 16
- audiologic 18
- audiometer 15
- audiometry 17
- audiophile 18
- audiotaped 16
- audiotapes 15
- auditioned 14
- auditionee 13
- auditioner 13
- auspicious 18
- autoecious 15
- automation 15
- avaricious 18
- avocations 18
- axiologies 20
- axiomatise 20
- axiomatize 29
- babesioses 16
- babesiosis 16
- bajillions 25
- battalions 15
- bazillions 25
- behavioral 20
- behaviours 20
- bibliology 22
- bibliomane 21
- bibliopegy 24
- bibliopole 21
- bibliotics 20
- bibliotist 17
- bijections 26
- billionths 18
- bilocation 18
- binational 16
- bioassayed 16
- biocenoses 17
- biocenosis 17
- biocentric 20
- biochemist 21
- biocircuit 20
- bioclastic 20
- biocontrol 18
- biodefence 21
- biodefense 18
- biodegrade 17
- biodiverse 18
- biodynamic 23
- bioethanol 17
- bioethical 19
- biofouling 21
- biogeneric 19
- biogeneses 16
- biogenesis 16
- biogenetic 19
- biographee 20
- biographer 20
- biographic 23
- biohazards 25
- biolistics 17
- biological 20
- biologisms 19
- biologists 16
- biomarkers 20
- biomedical 21
- biometrics 19
- biometries 16
- biomimetic 22
- biomimicry 24
- biomorphic 24
- bionically 21
- biopharmas 21
- biophysics 23
- bioplastic 20
- biopolymer 22
- bioprinter 17
- bioreactor 16
- bioregions 16
- biorhythms 22
- bioscience 20
- bioscopies 19
- biosensors 14
- biosimilar 17
- biospheres 18
- biospheric 21
- biosurgery 18
- biotecture 17
- biotherapy 20
- biowarfare 19
- bioweapons 20
- bisections 17
- bloviation 19
- bolections 18
- brachiopod 22
- briolettes 14
- bronchiole 20
- butylation 18
- byelection 20
- cabriolets 17
- calcarious 18
- calumnious 20
- capitation 17
- capriccios 22
- capricious 20
- caprioling 20
- captioning 20
- captiously 20
- carbanions 18
- cardiogram 19
- cardiology 19
- carination 15
- cariogenic 19
- carnations 15
- carpaccios 22
- caseations 14
- cassations 14
- castration 14
- catenaccio 20
- catenation 15
- causations 15
- cautionary 17
- cautioning 18
- cautiously 18
- cavitation 18
- cellobiose 18
- censorious 15
- centillion 17
- centrioles 15
- centurions 16
- certiorari 13
- cessations 14
- chalazions 26
- championed 23
- charioteer 15
- charioting 18
- cheerioing 18
- chelations 17
- chionodoxa 24
- ciliations 15
- citational 15
- clarioning 18
- claymation 20
- cliometric 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
- commodious 21
- commotions 20
- communions 22
- compaction 23
- companions 21
- compassion 20
- compatriot 19
- completion 21
- complexion 28
- compulsion 22
- conception 21
- concession 18
- conchiolin 21
- 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
- contagious 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
- craniology 19
- craniopagi 19
- craniotomy 19
- cremations 17
- crenations 15
- criterions 14
- cumulation 20
- cunctation 19
- curiousest 15
- curvacious 22
- 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
- deltiology 17
- 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
- diogenites 14
- 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
- ecowarrior 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
- enantiomer 15
- encryption 20
- endobiotic 18
- enervation 16
- entropions 15
- envisioned 17
- epilations 15
- epilimnion 19
- episiotomy 18
- equational 22
- equitation 21
- eriophyids 18
- eructation 15
- eruditions 13
- escalation 15
- espionages 16
- estimation 14
- estivation 15
- estradiols 12
- ethanediol 15
- ethionines 14
- etiolating 14
- etiolation 12
- etiologies 13
- eudiometer 15
- eudiometry 17
- euphonious 18
- evacuation 19
- evaluation 17
- evocations 18
- evolutions 17
- exaltation 19
- exaptation 21
- excavation 25
- excelsiors 21
- 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
- exobiology 25
- expansions 22
- expedition 22
- expiations 21
- expiration 21
- explosions 22
- exposition 21
- expression 21
- expulsions 23
- expunction 26
- exsertions 18
- exsolution 20
- extensions 19
- exteriorly 20
- extinction 22
- extortions 18
- extraction 21
- extrusions 19
- exudations 20
- exultation 20
- exuviation 23
- fabulation 19
- factiously 20
- factitious 17
- fallacious 19
- fanfiction 21
- fasciation 17
- fashioners 16
- fashioning 19
- fastidious 15
- federation 15
- fellations 16
- fictioneer 17
- fictionist 17
- fictionize 26
- fictitious 17
- figuration 17
- filiations 15
- filtration 15
- fissioning 17
- flagitious 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
- funniosity 18
- furcations 18
- fusionists 15
- gabionages 18
- ganglionic 20
- gazillions 24
- gemination 17
- gemmations 19
- generation 14
- gestations 13
- glaciation 17
- glaciology 21
- gleization 23
- gloriously 17
- goniometer 16
- goniometry 18
- gorgoneion 16
- graciously 19
- gradations 14
- graduation 15
- gregarious 15
- gustations 14
- guttations 14
- gyrational 16
- habitation 16
- hagiolatry 17
- hagiologic 20
- hagioscope 20
- harmonious 17
- hebetation 16
- heliograms 18
- heliograph 20
- heliolatry 16
- heliometer 16
- heliopause 17
- heliostats 13
- heliotrope 16
- heliotypes 18
- heliozoans 23
- hellacious 18
- hemangioma 21
- herniation 14
- hesitation 13
- histiocyte 17
- histrionic 16
- hortations 13
- hydramnios 19
- hydrations 16
- ideational 13
- idioblasts 15
- idiolectal 16
- idiopathic 19
- idiophones 17
- illocution 17
- illusional 15
- imbibition 20
- imbroglios 19
- imitations 14
- immersions 17
- immolation 18
- impactions 20
- impanation 18
- impassions 17
- impervious 21
- implosions 18
- imposition 17
- impresario 16
- impression 17
- impulsions 19
- imputation 18
- inanitions 13
- incautions 16
- incautious 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
- infectious 18
- inferiorly 17
- infixation 22
- inflations 16
- inflection 19
- inflexions 23
- infliction 19
- infraction 18
- ingestions 14
- inglorious 15
- ingression 14
- inhalation 15
- inhibition 17
- inhumation 18
- initiation 12
- injections 24
- injunction 26
- innovation 17
- insertions 12
- insolation 13
- inspection 18
- insulation 14
- intaglioed 15
- intaglioes 14
- intensions 13
- intentions 13
- interionic 15
- interiorly 14
- interunion 14
- intimation 15
- intinction 16
- intonation 13
- intrusions 13
- intubation 16
- intuitions 13
- inunctions 17
- inundation 15
- inventions 17
- inversions 16
- inviolable 20
- inviolably 22
- invitation 16
- invocation 19
- involution 18
- iodinating 15
- iodination 13
- iodisation 12
- iodization 21
- iodometric 17
- 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
- juniorates 21
- kazillions 26
- labiovelar 19
- laceration 15
- lactations 15
- lamination 16
- lascivious 19
- latifundio 17
- latticinio 15
- laudations 14
- laureation 13
- lectionary 17
- legionella 16
- levigation 18
- levitation 16
- libecchios 22
- liberation 15
- librations 15
- licentious 16
- limitation 15
- lineations 13
- lionfishes 17
- lionhearts 14
- liquations 22
- literation 12
- litigation 14
- lobulation 17
- locational 16
- locomotion 18
- loquacious 25
- lubricious 19
- lugubrious 19
- lusciously 19
- lustration 13
- maceration 17
- maculation 19
- magnolious 18
- malathions 17
- marination 15
- marionette 14
- maturation 15
- medallions 17
- mediations 15
- medication 18
- mediocracy 22
- mediocrely 20
- mediocrity 19
- meditation 15
- meliorated 15
- meliorates 14
- meliorator 14
- meliorisms 17
- meliorists 14
- menadiones 16
- mendacious 19
- meningioma 20
- menologion 18
- mentations 15
- mentioners 15
- mentioning 18
- meridional 16
- methiocarb 21
- methionine 17
- microbiome 22
- microbiota 19
- midsection 18
- migrations 16
- millefiori 18
- millionths 18
- milliosmol 19
- miscaption 20
- misprision 17
- missiology 18
- missionary 16
- missioners 14
- missioning 17
- missionize 23
- mitigation 16
- moderation 15
- modillions 17
- modulation 17
- monoecious 18
- mordacious 18
- morulation 16
- motionless 15
- motivation 18
- moustachio 19
- mullioning 20
- multiunion 18
- munitioned 17
- munitioner 16
- mustachios 19
- mutational 16
- mutilation 16
- mysterious 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
- nonobvious 20
- nonrioters 12
- nonrioting 15
- nonserious 13
- nonviolent 18
- notational 13
- notionally 16
- novobiocin 22
- nucleation 17
- numeration 16
- nutational 14
- nutritions 13
- nutritious 13
- objections 26
- oblational 16
- obligation 17
- obsequious 24
- obsessions 14
- obtentions 15
- obtrusions 15
- obturation 15
- obversions 18
- obviations 18
- occasional 18
- occasioned 18
- occlusions 19
- occupation 21
- octillions 16
- odiousness 13
- oestradiol 12
- olfactions 18
- onionskins 17
- operations 14
- ophiolitic 19
- opinionise 15
- opinionize 24
- opposition 17
- oppression 17
- optionally 18
- ordination 13
- orpharions 16
- osculation 16
- otioseness 11
- otiosities 10
- outstation 12
- ovariotomy 19
- overaction 18
- ovulations 17
- oxidations 19
- ozonations 21
- pagination 17
- palliation 16
- palmations 18
- palpations 18
- papilionid 19
- parabioses 16
- parabiosis 16
- parabiotic 19
- parashioth 17
- parathions 16
- partitions 14
- passionals 15
- passionate 14
- passionnel 16
- pasticcios 19
- patination 15
- patriotism 16
- pavilioned 20
- peculation 19
- pedication 18
- pennillion 18
- pensionary 17
- pensioners 15
- pensioning 18
- pensionnat 16
- perception 20
- percussion 18
- perditions 15
- pereiopods 17
- perfection 20
- perfidious 18
- perfusions 18
- perihelion 17
- periodates 14
- periodical 18
- periodised 15
- periodises 14
- periodized 24
- periodizes 23
- periosteal 14
- periosteum 17
- perjurious 24
- permeation 17
- permission 17
- pernicious 18
- peroration 14
- persuasion 15
- pervasions 18
- perversion 18
- petiolules 16
- petitioned 15
- petitioner 14
- phelonions 18
- phonations 17
- photodiode 17
- physiocrat 20
- physiology 22
- pincushion 21
- pinnations 16
- pioneering 17
- pistachios 18
- pixelation 22
- pixilation 22
- placations 18
- planations 16
- plantation 16
- pleiotropy 19
- plesiosaur 15
- plications 18
- poliovirus 19
- pollutions 17
- population 19
- portfolios 17
- portioning 17
- positional 15
- positioned 15
- positioner 14
- possession 14
- posteriori 13
- posteriors 13
- postilions 15
- postillion 16
- prebiotics 19
- precarious 17
- precaution 18
- precession 17
- preciosity 18
- preciouses 17
- preciously 20
- precisions 17
- preclusion 19
- precocious 20
- predacious 18
- predations 15
- prediction 18
- preemption 20
- prehension 17
- prelection 18
- prelusions 16
- premeiotic 19
- prenotions 15
- preportion 17
- pretension 15
- prevention 19
- previously 21
- previsions 18
- prioresses 13
- priorities 13
- prioritise 13
- prioritize 22
- priorships 18
- privations 18
- proactions 17
- probations 17
- probiotics 19
- procession 17
- prodigious 17
- production 19
- profession 17
- profusions 18
- projection 26
- prolusions 16
- promotions 17
- pronations 15
- propionate 17
- propitious 17
- proportion 17
- propulsion 19
- prorations 14
- protection 17
- protrusion 15
- provisions 18
- pugnacious 21
- pulsations 16
- pultrusion 17
- punctation 19
- punctilios 19
- purgations 17
- quaternion 22
- questioned 22
- questioner 21
- quotations 21
- radiations 12
- radicchios 19
- radiogenic 17
- radiograms 16
- radiograph 18
- radiolabel 16
- radiolaria 12
- radiologic 17
- radiolyses 14
- radiolysis 14
- radiolytic 17
- radiometer 14
- radiometry 16
- radiopaque 24
- radiophone 17
- radiophoto 16
- radioscopy 19
- radiosonde 13
- radiotelex 19
- radiowaves 18
- rationales 12
- rationally 15
- readoption 15
- rebellions 16
- rebellious 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
- restitutio 11
- resumption 18
- retentions 12
- retraction 14
- reunionist 13
- revelation 16
- reversions 15
- revocation 18
- revolution 17
- revulsions 17
- robustious 15
- rotational 12
- ruinations 13
- rumination 16
- salicional 16
- salivation 16
- saltations 12
- salubrious 16
- salutation 13
- salvations 16
- sanctioned 16
- sanitation 12
- satiations 11
- saturation 12
- scabiouses 17
- scagliolas 17
- sciolistic 17
- secessions 14
- seclusions 16
- secretions 14
- sectionals 15
- sectioning 17
- seductions 16
- selections 15
- semeiology 18
- semeiotics 16
- semiopaque 26
- sensations 12
- separation 14
- sepiolites 14
- septations 14
- septillion 16
- sequacious 24
- seriations 11
- seriocomic 19
- serrations 11
- sextillion 20
- sibilation 15
- signiories 13
- siltations 12
- simulation 16
- situations 12
- sociograms 18
- sociolects 17
- sociolegal 17
- sociologic 19
- sociometry 18
- sociopaths 18
- sociopathy 20
- solfeggios 18
- solvations 16
- sonication 15
- sortitions 11
- spaciously 20
- spallation 16
- speciation 17
- speciosity 18
- speciously 20
- spoliation 15
- spongiosum 20
- spuriously 18
- squamation 24
- squillions 23
- stagnation 14
- stanchions 17
- starvation 15
- stationary 13
- stationers 11
- stationery 13
- stationing 14
- staycation 16
- stevioside 15
- storiation 11
- striations 11
- struthious 14
- studiously 16
- subduction 20
- subjection 27
- sublations 16
- submersion 18
- submission 18
- subperiods 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
- superiorly 17
- supination 16
- suppletion 19
- surjection 24
- suspension 16
- suspicions 18
- suspicious 18
- tabulation 16
- taeniodont 13
- tarnations 12
- television 16
- teliospore 14
- temptation 17
- tenebrious 15
- tensioners 12
- tensioning 15
- testations 11
- thermionic 19
- thiomersal 16
- thiopental 17
- thiophenes 18
- thiouracil 17
- tibiotarsi 13
- titivation 15
- titrations 11
- titubation 15
- toleration 12
- tortiously 14
- trabeation 14
- tractional 15
- tradeunion 14
- traditions 12
- trajection 23
- transition 12
- trillionth 15
- trisection 14
- triskelion 16
- tritiation 11
- truncation 16
- ulceration 16
- ulteriorly 15
- ululations 15
- undulation 16
- ungracious 18
- unionising 16
- unionistic 16
- unionizing 25
- unviolated 18
- uproarious 15
- urinations 13
- urtication 15
- usucaption 19
- usuriously 16
- usurpation 16
- uxoriously 22
- vacationed 19
- vacationer 18
- validation 17
- valuations 17
- variations 15
- variometer 17
- vegetation 17
- velitation 16
- venational 17
- veneration 16
- vermilions 19
- vermillion 20
- vernations 16
- versioning 18
- vesication 18
- vibrations 18
- victorious 18
- violaceous 19
- violations 16
- violinists 16
- visionally 19
- visionless 16
- visitation 15
- vitiations 15
- vitrioling 18
- vitriolled 17
- vocational 19
- volitional 17
- waystation 16
- xenobiotic 24
- zabaglione 26
- zillionths 24
- zwitterion 23
- ademptions 15
- apriorisms 14
- arcuations 12
- bilections 14
- biodiesels 13
- biofoulers 15
- biomineral 14
- bionomists 14
- biophilias 17
- biopirates 14
- biostromes 14
- bioterrors 12
- caudations 13
- cautioners 12
- clarionets 12
- clavations 15
- connations 12
- darnations 11
- dentations 11
- detrusions 11
- diosgenins 12
- divulsions 14
- douppionis 15
- embroglios 15
- ethionamid 16
- exertional 17
- exsections 19
- finocchios 20
- fioraturae 13
- fusionisms 15
- haliotises 13
- halobionts 15
- heliotyped 19
- idioplasms 15
- idiotproof 16
- impletions 14
- incretions 12
- ionosondes 11
- jactations 19
- lallations 10
- leiomyomas 17
- nictations 12
- nunnations 10
- ophiolites 15
- pastitsios 12
- peltations 12
- portioners 12
- prefixions 22
- preoptions 14
- recautions 12
- reenvision 13
- reinfusion 13
- restations 10
- retorsions 10
- retortions 10
- reviolated 14
- reviolates 13
- scalations 12
- senioritis 10
- sinuations 10
- strictions 12
- suffixions 23
- sulcations 12
- sulfations 13
- tellurions 10
- unionizers 19
- vallations 13
- variolated 14
- variolates 13
- variolites 13
- varioloids 14
- venditions 14
- viosterols 13
- visionings 14
- abiotrophy 20
- abjunction 21
- abortional 12
- abstersion 12
- accensions 14
- accubation 16
- acervation 15
- acieration 12
- acroterion 12
- actionists 12
- aerobionts 12
- aerobiotic 14
- afflations 16
- affluxions 23
- agnoiology 15
- agregation 12
- alineation 10
- alligation 11
- amatorious 12
- ambiophony 22
- ameliorant 12
- ampliation 14
- anamniotes 12
- anamniotic 14
- anhelation 13
- appetition 14
- aprication 14
- apriorists 12
- apsidioles 13
- arefaction 15
- arenations 10
- areolation 10
- astriction 12
- ateleioses 10
- ateleiosis 10
- attuitions 10
- auctionary 15
- audiograph 17
- audiophils 16
- axiologist 18
- axiomatics 21
- bacterioid 15
- balections 14
- balneation 12
- bandonions 13
- bibliophil 19
- bibliopoly 19
- biocellate 14
- biocenotic 16
- bioecology 18
- biographed 19
- biominings 15
- bioparents 14
- bioplasmic 18
- biopoieses 14
- biopoiesis 14
- bioreagent 13
- biostatics 14
- biotically 17
- blennioids 13
- bullionist 12
- calcedonio 15
- calliopsis 14
- cameration 14
- cancionero 14
- canulation 12
- cessionary 15
- cineration 12
- coemptions 16
- cohibition 17
- commixtion 23
- compursion 16
- conational 12
- consension 12
- copatriots 14
- correption 14
- creational 12
- cribration 14
- crispation 14
- crustation 12
- curtations 12
- curvations 15
- cushionets 15
- datamation 13
- dealbation 13
- deceptious 15
- 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
- dieciously 16
- dioicously 16
- diophysite 19
- dioptrical 15
- diorthoses 14
- diorthosis 14
- diorthotic 16
- diothelete 14
- diothelism 16
- diothelite 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
- edaciously 16
- editioning 12
- elaiosomes 12
- emications 14
- emollition 12
- emunctions 14
- enantioses 10
- enantiosis 10
- enarration 10
- encolpions 14
- epidiorite 13
- epinicions 14
- epinikions 16
- epulations 12
- epurations 12
- eradiation 11
- eriometers 12
- eriophorum 17
- eriostemon 12
- eruptional 12
- ethylation 16
- etiologist 11
- evagations 14
- evanitions 13
- evectional 15
- evitations 13
- exarations 17
- excambions 23
- exceptious 21
- eximiously 22
- exorations 17
- factionary 18
- factionist 15
- falcations 15
- fashionist 16
- faulchions 18
- fictionise 15
- fiddioused 16
- fiddiouses 15
- finnochios 18
- flectional 15
- fluxionary 23
- fluxionist 20
- foetations 13
- fugitation 14
- fusionless 13
- futurition 13
- gabionades 14
- gabionnade 14
- galiongees 12
- gleisation 11
- gliomatous 13
- gnosiology 15
- gnotobiote 13
- goloptious 13
- goluptious 13
- gonioscope 15
- graciosity 16
- graciouses 13
- grivations 14
- gyniolatry 17
- hagiocracy 21
- hagiolater 14
- halobiotic 17
- haplobiont 17
- hariolated 14
- hariolates 13
- heliolater 13
- heliometry 18
- heliophyte 21
- helioscope 17
- heliotaxes 20
- heliotaxis 20
- heliotropy 18
- heliotypic 20
- hemionuses 15
- hemiopsias 17
- heriotable 15
- herniotomy 18
- histiology 17
- horologion 14
- idiographs 17
- idiolectic 15
- idiophonic 18
- idioticons 13
- ignoration 11
- illusioned 11
- immanation 14
- imminution 14
- immissions 14
- implexions 21
- inchoation 15
- inequation 19
- influxions 20
- insections 12
- insomnious 12
- intorsions 10
- intortions 10
- inviolated 14
- 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
- leiotrichy 18
- leviration 13
- libational 12
- lioncelles 12
- loculation 12
- lorication 12
- luctations 12
- lumination 12
- macrobiota 16
- macrobiote 16
- mactations 14
- malaxation 19
- malleation 12
- mandilions 13
- mandioccas 17
- mandylions 16
- mansionary 15
- marlacious 14
- matrioshka 19
- matrioshki 19
- maximation 21
- meiofaunal 15
- meiospores 14
- meliorable 14
- militation 12
- millionary 15
- miniations 12
- missionise 12
- modioluses 13
- mollitious 12
- motionists 12
- multivious 15
- mycobionts 19
- myrioramas 17
- myrioscope 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
- ophiolater 15
- ophiolatry 18
- ophiologic 18
- ophiomorph 22
- opinionist 12
- oppilation 14
- opsiometer 14
- oscitation 12
- outdacious 13
- outpassion 12
- pactioning 15
- palladious 13
- pandations 13
- papulation 14
- paroecious 14
- passionary 15
- passioning 13
- patriation 12
- pejoration 19
- pensioneer 12
- periodides 14
- pertusions 12
- perviously 18
- petiolated 13
- phaelonion 15
- phycobiont 22
- pillioning 13
- pillionist 12
- pollusions 12
- porphyrios 20
- porrection 14
- portionist 12
- prelations 12
- preludious 13
- premotions 14
- presension 12
- prestation 12
- procacious 16
- prolations 12
- prolixious 19
- pronuncios 14
- prooemions 14
- propension 14
- protension 12
- provection 17
- pulvillios 15
- pundigrion 14
- pyramidion 18
- quartation 19
- questionee 19
- quotatious 19
- quotitions 19
- racemation 14
- rachiotomy 20
- raciations 12
- radication 13
- radiogolds 13
- radiopager 14
- radiophony 19
- radioscope 15
- radiothons 14
- radiotoxic 20
- rampacious 16
- rascallion 12
- reactional 12
- reboations 12
- recaptions 14
- recusation 12
- reioyndure 14
- remigation 13
- renegation 11
- reptations 12
- reptilious 12
- reunionism 12
- revisional 13
- rhipidions 16
- ructations 12
- rumbullion 14
- ruthenious 13
- sagination 11
- sanctioner 12
- saprobiont 14
- sciomancer 16
- sciomantic 16
- sciophytes 20
- sciophytic 22
- scorpioids 15
- scorpionic 16
- scrunchion 17
- scurriours 12
- scutations 12
- sdrucciola 15
- sectionise 12
- sectionize 21
- semination 12
- semiologic 15
- sideration 11
- sigmations 13
- sociations 12
- solutional 10
- solutioned 11
- sortations 10
- spadillios 13
- spaniolate 12
- spaniolise 12
- spaniolize 21
- speciocide 17
- spirations 12
- sponsional 12
- spuriosity 15
- stasidions 11
- sticharion 15
- storiology 14
- strophiole 15
- struthioid 14
- stupration 12
- subactions 14
- subception 16
- sufflation 16
- sulphation 15
- superation 12
- suspirious 12
- sustention 10
- suturation 10
- symbiontic 19
- symphonion 20
- synaxarion 20
- synoecious 15
- tabellions 12
- taxational 17
- tediousome 13
- tentations 10
- thiocyanic 20
- thiofurans 16
- tidivation 14
- toxication 19
- traduction 13
- tricerions 12
- trifarious 13
- trioecious 12
- trioxygens 21
- trisagions 11
- trithionic 15
- trunnioned 11
- tubulation 12
- tuitionary 13
- tutiorisms 12
- tutiorists 10
- umbonation 14
- unionisers 10
- ustulation 10
- usucapions 14
- vacuations 15
- vapulation 15
- variolator 13
- variolitic 15
- versioners 13
- versionist 13
- villagioes 14
- violenting 14
- visiogenic 16
- visionists 13
- visiophone 18
- vitriolate 13
- vitriolise 13
- vitriolize 22
- volitation 13
- volutation 13
- warrioress 13
- xanthation 20
There are 1791 10-letter words containing io in the well-known word game dictionary, 1198 in the Scrabble US (US/Canada/Thailand - TWL/NWL) dictionary, and 1712 in the Scrabble UK (International - SOWPODS/CSW) dictionary, and 1258 in the Words with Friends (WWF) dictionary.
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