How many words with IO are there?

This page lists 9215 words with IO from our dictionary, each shown with its Scrabble score.

Are these words valid in official Scrabble play?

Not necessarily. This site uses the open ENABLE word list; check the official dictionary used by your game or tournament.

Words With IO

All 9215 words in our dictionary that contain IO — sorted by Scrabble score.

9215 words · number = Scrabble score · sorted highest score first · showing top 1200

psychobiography36 extemporization35 podzolizations35 phosphatization34 podzolization34 rhythmizations34 axiomatizations33 diazotizations33 lexicalizations33 maximizations33 rhythmization33 axiomatization32 conveyorization32 desexualization32 diazotization32 dichotomization32 hybridizations32 hyperexcretions32 hypostatization32 lexicalization32 lyophilizations32 maximization32 pathophysiology32 physiopathology32 synchronization32 xeroradiography32 zombifications32 alphabetization31 axiomatizing31 equalizations31 exemplification31 exteriorization31 externalization31 hybridization31 hydroxylations31 hyperexcretion31 juxtapositional31 lyophilization31 mathematization31 misvocalization31 objectification31 physiographical31 polymerizations31 quantizations31 schematizations31 subvocalization31 symmetrizations31 unexceptionably31 zombification31 acclimatization30 axiomatized30 bowdlerizations30 cardiomyopathy30 catechizations30 cephalizations30 cholangiography30 computerization30 decarboxylation30 defeminizations30 dehumanizations30 denazifications30 equalization30 excommunication30 exteriorizing30 fractionalizing30 graphitizations30 histophysiology30 homogenizations30 hydroxylation30 hyperextensions30 immobilizations30 juxtapositions30 mechanizations30 microprojection30 ozonizations30 polymerization30 quantization30 schematization30 sexualizations30 suboptimization30 symbolizations30 symmetrization30 victimizations30 weatherizations30 axiomatizes29 balkanizations29 biomechanically29 bowdlerization29 catechization29 catheterization29 cephalization29 channelizations29 civilianization29 communizations29 conjunctionally29 conventionalize29 crystallization29 decarburization29 decimalizations29 defeminization29 dehumanization29 demobilizations29 democratization29 denazification29 envenomizations29 epithelizations29 exceptionably29 exhibitionistic29 exteriorized29 familiarization29 fictionalizing29 fictionizations29 formularization29 fractionalized29 graphitization29 homogenization29 hospitalization29 hyperextension29 immobilization29 juxtaposition29 lymphangiograms29 mechanization29 objectionably29 overexpectation29 ozonization29 photoexcitation29 photoionization29 physiographic29 physiography29 physiologically29 physiotherapy29 professionalize29 proselytization29 psychobiologic29 psychobiology29 quadruplication29 quantifications29 reprivatization29 requalification29 sexualization29 symbolization29 systematization29 thermalizations29 thermojunctions29 vascularization29 victimization29 weatherization29 alkalinizations28 asphyxiations28 axiomatize28 balkanization28 biogeochemistry28 bipolarizations28 bituminizations28 cannibalization28 capitalizations28 carboxylations28 channelization28 circularization28 civilizational28 communization28 concretizations28 conjugationally28 conversaziones28 criminalization28 cyclizations28 decimalization28 deglamorization28 demagnetization28 demobilization28 derivatizations28 desulfurization28 detoxifications28 envenomization28 epithelization28 epizootiologic28 epizootiology28 evangelizations28 exceptionalisms28 exceptionality28 exhibitionisms28 exteriorizes28 factorizations28 federalizations28 fictionalized28 fictionization28 formalizations28 fractionalizes28 frenchification28 harmonizations28 hyperfunctional28 hyperproduction28 immortalization28 inefficaciously28 keratinizations28 lymphangiogram28 lysogenizations28 martyrizations28 masculinization28 microinjections28 monopolizations28 musicalizations28 parametrization28 phosphorylation28 photoionizing28 photooxidations28 physiographers28 physiographies28 physiotherapies28 physiotherapist28 phytosociology28 plasticizations28 politicizations28 popularizations28 privatizations28 psychobiologies28 psychobiologist28 pulverizations28 qualifications28 quantification28 radiochemically28 remobilizations28 revolutionizing28 romanticization28 specializations28 suburbanization28 systemizations28 thermalization28 thermojunction28 unexceptionable28 unobjectionable28 unquestionably28 unquestioningly28 verbalizations28 vulcanizations28 alkalinization27 approximations27 arabicizations27 asphyxiation27 axiomatically27 azathioprines27 bacterizations27 barbarizations27 bastardizations27 bibliographical27 biochemically27 biogeochemicals27 biographically27 bipolarization27 bituminization27 capitalization27 carbonizations27 carboxylation27 carburizations27 categorizations27 championships27 cicatrizations27 civilizations27 cocainizations27 commodification27 concretization27 conversazione27 conversazioni27 customizations27 cyclization27 decasualization27 decolonizations27 decolorizations27 delocalizations27 demonetizations27 demoralizations27 depolarizations27 derivatization27 desacralization27 destabilization27 detoxification27 detribalization27 dogmatizations27 dolomitizations27 ecophysiology27 epizootiologies27 equivocations27 etherealization27 evangelization27 exceptionalism27 exceptionally27 exhibitionism27 exteriorize27 factorization27 federalization27 feminizations27 feudalizations27 fiberizations27 fictionalizes27 fictionizing27 focalizations27 formalization27 fractionalize27 fraternizations27 galvanizations27 geometrizations27 ghettoizations27 harmonization27 hebraizations27 hominizations27 humanizations27 hydrobiological27 hypercorrection27 hyperfastidious27 hyperfunctions27 hypothecations27 infantilization27 keratinization27 legitimizations27 liquefactions27 lysogenization27 marginalization27 martyrization27 mercerizations27 microinjection27 mongrelizations27 monopolization27 musicalization27 nazifications27 neurophysiology27 oligomerization27 overextractions27 overutilization27 paralyzations27 photoionized27 photooxidation27 physiognomical27 physiographer27 picturizations27 pidginizations27 plasticization27 politicization27 popularization27 privatization27 pulverization27 quadrillionths27 qualification27 quasiperiodic27 radicalizations27 reauthorization27 remobilization27 revalorizations27 revisualization27 revitalizations27 revolutionized27 revolutionizers27 semiofficially27 specialization27 stigmatizations27 suborganization27 summarizations27 systemization27 temporizations27 trivializations27 vandalizations27 vaporizations27 verbalization27 vocalizations27 volatilizations27 vulcanization27 vulgarizations27 westernizations27 anglicizations26 approximation26 arabicization26 authorizations26 automatizations26 axiologically26 azathioprine26 bacteriophagy26 bacterization26 barbarization26 bastardization26 biofeedbacks26 biogeochemical26 biogeographical26 biomathematical26 biorhythmic26 biostratigraphy26 blaxploitations26 carbonization26 carburization26 categorization26 centralizations26 championship26 chemoreceptions26 choriocarcinoma26 cicatrization26 civilization26 cocainization26 colonizationist26 complexations26 complexioned26 counterquestion26 crucifixions26 customization26 cyanoethylation26 decolonization26 decolorization26 delocalization26 demonetization26 demoralization26 demystification26 denationalizing26 deoxygenations26 depolarization26 diagonalization26 digitalizations26 disorganization26 dogmatization26 dolomitization26 dramatizations26 echocardiograms26 ecophysiologies26 efficaciously26 embolizations26 emotionalizing26 equivocation26 exceptionable26 exceptionalness26 excrementitious26 exhibitionists26 expeditionary26 expeditiously26 experimentation26 expressionistic26 extemporisation26 feminization26 fertilizations26 feudalization26 fiberization26 fictionalize26 fictionized26 fluidizations26 focalization26 fossilizations26 fraternization26 frequentations26 gallicizations26 galvanization26 geometrization26 germanizations26 ghettoization26 glamorizations26 globalizations26 hagiographical26 hebraization26 hellenizations26 historiographic26 historiography26 hominization26 humanization26 humidifications26 hyperconscious26 hyperfunction26 hyperinflations26 hyperinvolution26 hypersalivation26 hypothecation26 immunizations26 immunodiffusion26 indigenizations26 injudiciously26 jollifications26 justifications26 kwashiorkors26 legitimization26 liberalizations26 liquefaction26 loquaciously26 magnetizations26 materialization26 memorizations26 mercerization26 microradiograph26 militarizations26 mineralizations26 miniaturization26 minimizations26 missionizations26 misutilizations26 mobilizations26 modernizations26 mongrelization26 nazification26 objectionable26 obsequiously26 optimizations26 overexpansions26 overextraction26 palatalizations26 paralyzation26 parasitizations26 pasteurizations26 periodizations26 personalization26 perspicaciously26 phenylthioureas26 phonocardiogram26 photoionizes26 picturization26 pidginization26 podsolizations26 pressurizations26 prioritizations26 prussianization26 pyrheliometric26 quadrillionth26 questionably26 quindecillions26 quintillionths26 racemizations26 radicalization26 randomizations26 recanalizations26 recolonizations26 remonetizations26 renormalization26 repolarizations26 resocialization26 revalorization26 revitalization26 revivifications26 revolutionizer26 revolutionizes26 ruggedizations26 sclerotizations26 secularizations26 securitizations26 sequaciously26 solubilizations26 sovietizations26 standardization26 stigmatization26 subsidizations26 summarization26 symphoniously26 temporization26 thioridazines26 traditionalized26 traumatizations26 trivialization26 vandalization26 vaporization26 vernalizations26 visualizations26 vocalization26 volatilization26 vulgarization26 westernization26 winterizations26 zwitterionic26 actualizations25 affectionately25 allegorizations25 amphioxuses25 anglicization25 animalizations25 aromatizations25 authorization25 automatization25 autoradiography25 bacteriophagies25 basidiomycetous25 bibliographic25 bibliography25 bibliophilisms25 bibliotherapy25 bioavailability25 biofeedback25 biohazards25 biomathematics25 biophysicists25 blaxploitation25 brutalizations25 cardiopulmonary25 cartelizations25 cauterizations25 centralization25 chemoreception25 circumscription25 circumspections25 companionships25 companionways25 complexation25 complexional25 crucifixion25 decalcification25 demonizations25 denationalized25 deodorizations25 deoxygenation25 deputizations25 desalinizations25 desensitization25 desquamations25 digitalization25 dimerizations25 disintoxication25 dithiocarbamate25 dramatization25 echocardiogram25 efficaciousness25 embolization25 emotionalized25 equilibrations25 eroticizations25 etherizations25 exhibitioners25 exhibitionist25 exobiological25 expansionistic25 expectorations25 expeditiousness25 expressionisms25 expropriations25 fashionability25 fertilization25 fictionizes25 finalizations25 fluidization25 fossilization25 frequentation25 fructifications25 gallicization25 gelatinizations25 generalizations25 germanization25 glamorization25 globalization25 heliometrically25 hellenization25 homoiothermic25 humidification25 hydrobiologists25 hydrobiology25 hyperinflation25 hypersecretions25 idiopathically25 illegalizations25 immunization25 indigenization25 injudiciousness25 ionospherically25 isomerizations25 italicizations25 jollification25 judiciousnesses25 justification25 kwashiorkor25 labializations25 liberalization25 loquaciousness25 magnetization25 memorization25 metallizations25 militarization25 mineralization25 minimization25 missionization25 misutilization25 mobilization25 modernization25 mummifications25 mutualizations25 nonbiographical25 nondisjunctions25 normalizations25 novelizations25 obsequiousness25 optimization25 overexpansion25 palatalization25 palletizations25 parasitization25 pasteurization25 patronizations25 pelletizations25 periodization25 phenylthiourea25 photobiological25 photoionize25 photoperiodisms25 photoproduction25 physiognomic25 physiognomy25 pluralizations25 podsolization25 premodification25 pressurization25 prioritization25 projectionists25 proprioceptive25 quindecillion25 quintillionth25 racemization25 radioautography25 radiochemistry25 radiotelegraphy25 randomization25 rationalizable25 reacquisitions25 recanalization25 recolonization25 regionalization25 regularizations25 remonetization25 renationalizing25 reorganizations25 repolarization25 revivification25 revolutionize25 ruggedization25 sclerotization25 secularization25 securitization25 sensationalized25 socializations25 solemnizations25 solubilization25 sovietization25 stabilizations25 subsidization25 subtilizations25 suffixations25 syllabification25 symbiotically25 theorizations25 theriomorphic25 thermoperiodism25 thioridazine25 traditionalizes25 traumatization25 unquestionable25 valorizations25 velarizations25 vernalization25 vexatiousnesses25 visualization25 vitalizations25 winterization25 accommodational24 acquisitional24 actualization24 adjudications24 aerosolizations24 affectionally24 affixations24 allegorization24 ammonifications24 amortizations24 amphibiously24 analyzations24 animalization24 arborizations24 aromatization24 autobiographic24 autobiography24 axiomatisations24 bacteriophages24 basidiomycetes24 bibliographers24 bibliographies24 bibliophilism24 bibliotherapies24 biochemistry24 biogeographic24 biogeography24 biohazard24 biomechanical24 biophysicist24 biotechnology24 brutalization24 canalizations24 canonizations24 cardiographic24 cardiography24 cardiothoracic24 cartelization24 cauterization24 chalazions24 chionodoxas24 chronobiologic24 chronobiology24 circumspection24 circumvallation24 circumvolutions24 colonizations24 colorizations24 companionably24 companionship24 companionway24 compassionately24 complexions24 compositionally24 computationally24 conjunctional24 creolizations24 cryobiological24 curarizations24 deacidification24 decaffeinations24 dehydrogenation24 demonization24 denationalizes24 deodorization24 deputization24 derealizations24 desalinization24 desquamation24 devitrification24 dieselizations24 digitizations24 dimerization24 disembarkations24 diversification24 emotionalizes24 enantiomorphism24 equationally24 equilibration24 eroticization24 etherization24 exacerbations24 excavational24 exclusionary24 excruciations24 exhibitioner24 expansionary24 expansionisms24 expectational24 expectoration24 exponentiations24 expressionism24 expropriation24 extensionality24 extortionately24 extravasations24 fictionize24 finalization24 fructification24 gelatinization24 generalization24 hagiographic24 hagiography24 historiographer24 hydrobiologies24 hydrobiologist24 hyperemotional24 hypersecretion24 illegalization24 incommodiously24 incomprehension24 initializations24 interiorization24 internalization24 isomerization24 italicization24 judiciously24 jurisdictional24 labialization24 lateralizations24 lexicalisations24 literalizations24 localizations24 melanizations24 metallization24 microbiological24 misapprehension24 misquotations24 missionizing24 monetizations24 moralizations24 motorizations24 mummification24 mutualization24 mystifications24 nationalization24 naturalizations24 nebulizations24 neutralizations24 nondisjunction24 nonexploitation24 normalization24 novelization24 obnoxiousnesses24 organizational24 overapplication24 overconsumption24 overextensions24 palletization24 patronization24 pelletization24 penalizations24 perfectionistic24 perionychium24 perjuriously24 photoperiodism24 photoreceptions24 physiocratic24 physiognomies24 physiological24 pluralization24 polarizations24 postinjection24 postvaccination24 prefabrications24 prioritizing24 projectionist24 pyrheliometers24 rationalization24 reacquisition24 regionalizing24 regularization24 renationalized24 reorganization24 requisitioning24 robotizations24 romanizations24 sensationalizes24 sensualizations24 signalizations24 simplifications24 socialization24 solemnization24 stabilization24 stylizations24 suberizations24 subtilization24 suffixation24 tenderizations24 theorization24 traditionalize24 unexceptional24 unfashionably24 urbanizations24 valorization24 velarization24 vexatiously24 vitalization24 vivifications24 accommodations23 acquisitions23 adjudication23 aerosolization23 affixation23 aldolizations23 ammonification23 amortization23 amphibiousness23 amphioxus23 amplifications23 analyzation23 antifashionable23 antivivisection23 anxiolytics23 arborization23 atomizations23 autobiographers23 autobiographies23 axiomatisation23 bacteriophage23 basidiomycete23 behaviorally23 behavioristic23 bibliographer23 bibliophilic23 bibliophily23 bidirectionally23 biochemicals23 biochemistries23 biocompatible23 bioelectricity23 biogeographers23 biogeographies23 bioluminescence23 biomechanics23 biophysical23 biorhythms23 biosystematics23 biotechnologies23 biotechnologist23 calcifications23 canalization23 canonization23 caprifications23 cardiographies23 chalazion23 chemiosmotic23 chemisorptions23 chionodoxa23 cholangiograms23 chronobiologies23 chronobiologist23 circumlocutions23 circumventions23 circumvolution23 coeducationally23 colonization23 colorization23 communicational23 compendiously23 complementation23 complexion23 comprehensions23 confectionary23 confectionery23 conjugational23 conjunctions23 contumaciously23 conventionality23 creolization23 curarization23 cycloadditions23 decaffeination23 decertification23 decommissioning23 deionizations23 denationalize23 derealization23 detoxications23 dieselization23 digitization23 disembarkation23 disquisitions23 effluxions23 emotionalize23 enantiomorphic23 endosymbiotic23 energizations23 epidemiological23 eudiometrically23 exacerbation23 excavations23 exclamations23 excogitations23 excruciation23 exculpations23 exhibitions23 exhilarations23 exhumations23 exobiologists23 exobiology23 expansionism23 expectations23 explications23 exponentiation23 expostulations23 expressionists23 expressionless23 exsanguinations23 exsiccations23 extensionally23 exterminations23 extrapolations23 extravasation23 extraversions23 extroversions23 fashionableness23 fashionmongers23 glycosylations23 gnotobiotically23 hagiographers23 hagiographies23 heliographic23 heliographing23 humifications23 hypercautious23 hyphenations23 idealizations23 indemnification23 inefficacious23 informationally23 initialization23 interbehavioral23 interiorizing23 interjectional23 itemizations23 judiciousness23 jurisdictions23 laicizations23 lateralization23 legalizations23 lexicalisation23 linearizations23 literalization23 localization23 luteinizations23 machicolations23 melanization23 misapplications23 miscomputations23 misquotation23 missionized23 missionizers23 monetization23 moralization23 motorization23 mystification23 nationalizing23 naturalization23 nebulization23 neutralization23 nonbiologically23 novemdecillions23 obnoxiously23 observationally23 occupationally23 officiousnesses23 organizations23 overcultivation23 overexertions23 overextension23 overmedications23 overproductions23 overtaxations23 oxygenations23 parabiotically23 pathobiology23 penalization23 perfectionisms23 photobiologic23 photobiologists23 photobiology23 photoinductions23 photoperiodic23 photoreception23 photoreductions23 polarization23 poliomyelitides23 preconsciously23 preconvictions23 prefabrication23 prepublications23 prioritized23 projectional23 proportionably23 proprioceptions23 pyrheliometer23 questionable23 questionary23 questionnaires23 radiochemical23 radiometrically23 radioprotective23 radiotelephony23 rambunctiously23 rationalizing23 recodifications23 reexaminations23 reexportations23 refortification23 regionalized23 rejuvenations23 renationalizes23 requisitioned23 retroflexions23 reutilizations23 ritualizations23 robotization23 romanization23 routinizations23 semiopaque23 sensationalize23 sensitizations23 sensualization23 sequestrations23 serializations23 seriocomically23 sexdecillions23 sexploitations23 signalization23 simplification23 solmizations23 specifications23 sporangiophores23 sterilizations23 stoichiometric23 stoichiometry23 stylization23 subconsciously23 suberization23 subjunctions23 superluxurious23 synchronisation23 tenderization23 terrorizations23 typifications23 uncircumcisions23 unconscionably23 unquestioning23 urbanization23 vexatiousness23 vivaciousnesses23 vivification23 vivisectionists23

Why IO words matter

Words containing IO are handy for Scrabble, Words with Friends and word puzzles — filter the list above by length to find the play you need.

This list by the numbers

Inside this list: 9215 words spanning 3–15 letters. The biggest cluster sits at 12 letters (1506 words), 51 entries are Wordle-sized at five letters, and 287 run to seven — bingo length if you can empty the rack. For points, the ceiling is PSYCHOBIOGRAPHY, worth 36.

For quick reference, the top of the score table reads: PSYCHOBIOGRAPHY (36), EXTEMPORIZATION (35), PODZOLIZATIONS (35), PHOSPHATIZATION (34), PODZOLIZATION (34). The longest entry is ABSTRACTIONISMS at 15 letters, and the average word here is worth about 17 points. The most useful tiles to hold for this list are I, O and N, which appear in 9215, 9215 and 7678 of the words respectively.

Three easy picks from this list

When the rack looks hopeless, ION (3 letters, 3 points) is the kind of quiet play that keeps a game moving.
IONS — 4 letters for 4 points; every tile in it is a common draw, so it shows up rack after rack.
Playing IOTA across a double-word square turns its base 4 points into 8 — solid value for 4 tiles.

Once those stick, file away the next tier too: LION (4), OLIO (4), RIOT (4), TRIO (4), AIOLI (5).

One chunk, many words: IO

Groups like this one reward a different kind of practice: pick five words of different lengths from the list above, write each in a sentence, and the IO pattern moves into long-term memory. It is also a quiet Scrabble edge — racks that spell IO plus common tiles come up constantly, and prepared players cash them in while others shuffle letters.

More high-value letters

Find more specific words

Need to narrow by starting letter, ending letter or a Wordle pattern? Use the Word Finder.