12-Letter Words Matching ________O___

There are 507 12-letter words that match ________O___. 136 are common words, such as ABERRATIONAL and ANTICYCLONES. A rarer one is ZWITTERIONIC. In this set, E is the most frequent open letter (384 words). 119 words contain a doubled letter.

Full list 507

Common words

aberrationalanticyclonesanticyclonicarthroscopesarthroscopicavitaminosesavitaminosisbattlefrontsbattlegroundblabbermouthbreakthroughbrotherhoods
aberrationalanticyclonesanticyclonicarthroscopesarthroscopicavitaminosesavitaminosisbattlefrontsbattlegroundblabbermouthbreakthroughbrotherhoodsbulletproofsbutterscotchcabinetworkschatterboxescheckerboardcheeseclothschickenpoxeschildproofedclotheshorsecobblestonescommissionedcommissionercomplexionalcomplexionedconceptionalconcessionalconfectionerconfessionalconvectionalconventionalcornerstonescorrectionalcouncilwomancouncilwomencounterfoilscounterpointcounterpoisecountrywomancountrywomencurmudgeonlyflameproofedflamethrowerfluoroscopesfluoroscopicforeshadowedgenerationalhaemorrhoidshallucinogenharpsichordshearthstonesherringboneshypothyroidsinflectionalinsectivoresinvitationallatticeworkslaundrywomanlaundrywomenmeetinghousemeteorologicmicrogroovesmicrosecondsmillisecondsmisanthropesmisanthropicmisdiagnosedmisdiagnosesmisdiagnosismotivationalmulticolorednavigationalnonalcoholicnonfictionaloccupationalonomatopoeiaonomatopoeicosteoporosesosteoporosisovershadowedpackinghouseparathyroidsparatyphoidsperceptionalphilharmonicplasterboardpostdoctoralposthypnoticpractitionerprocessionalprocessionedprofessionalprofiterolesproportionalproportionedpsychotropicquadraphonicrecreationalrhinocerosesschussboomerservicewomanservicewomensharpshootershuffleboardshuttlecockssmorgasbordssoundproofedspokespeoplestereophonicstereoscopesstereoscopicstethoscopesstreptococcistroboscopesstroboscopicsuperimposedsuperimposestheatergoersthistledownsthunderboltstradespeopletransitionaltransitionedtuberculosestuberculosisunaccustomedunchaperonedunderexposedunderexposesunquestionedunsanctionedwaterproofedweathercocksworkingwomanworkingwomenanchorpeopleadaptationalaeroneurosisagglutinogenaldosteronesanamorphosesanamorphosisanswerphonesantherozoidsantinarcoticantiperiodicantirationalantitakeoverapparitionalappositionalarchaeologicarchdeaconryarthrosporesaspirationalautochthonesautohypnosisbastinadoingbellbottomedbladdernosesbladderwortsbreechblocksbreechclothsbrushstrokescabbagewormscamerapeoplecherrystoneschordophoneschronoscopesclapperboardclimatologicconcertgoersconcessionerconventionercounterforcecountermovescraftspeoplecrinklerootscuckooflowercyprinodontsdeclensionaldefinitionaldenotationaldeoxyribosesdepositionalderivationaldeuteranopiadiscretionaldistortionaldraughtboardelectromotorelectrotonusenantiomorphepanorthosesepanorthosisepidiascopesepimorphosisepitheliomasescutcheonedexhibitionerexpositionalfemtosecondsfennelflowerflittermouseflutterboardforeshadowerfoundationalfrankalmoignfurunculosisgalactagoguegametophoresgerontologicgonadotropicgonadotropingroundclothshallucinosisheckelphonesherpetologicheterotrophyhomeschoolerhydrochlorichydrofluorichyperboloidshyperostosishypocycloidsichthyologicinnovationalintonationalinvolutionalirrigationalkilocoulombslaparoscopeslaparoscopicleatherwoodsleucocytosislollapaloosalollapaloozalycanthropeslycanthropicmaquiladorasmaturationalmeditationalmonophthongsnewfashionednonemotionaloppositionalornithologicosteoporoticparahydrogenparticoloredpasqueflowerphagocytosisphysiognomicpneumothoraxpolariscopespostseasonalprecessionalproctoscopesprosopopoeiapsychognosisredemptionalredemptionerreflectionalrefractionalrepositionedsalutationalsarcomatosisschistosomesscorpaenoidsscraperboardscratchboardscuppernongssensorimotorseptillionthsextillionthslipperwortssnaggletoothsportspeoplesqueezeboxesstereoisomersuccessionaltechnophobestechnophobiatechnophobictheanthropictrestleworksunneighborlyvegetationalvinegarroonsvisitationalweatherboardwhitethroatswithoutdoorsailurophobesailurophobiaamazonstonesamphictyonicanaerobiosesanaerobiosisanaplasmosesanaplasmosisannexationalanthracnosesantiboycottsanticathodesantieconomicantientropicantiestrogenantinationalastrocytomasautohypnosesautohypnoticavitaminoticbarricadoingbifunctionalblastosporesbreechcloutsbumbershootsbuttonhookedcannabinoidscarbonadoingcatholicoseschemiosmoticchromophoreschromophoriccobblestonedcocarcinogencochairwomancochairwomencompatrioticconcertgoingconnectionalconversionalcopingstonescotransportscountercoupscountermovedcounterposedcounterposescounterpowercounterworldcrescendoingcroquignolescrystalloidscustomshousecyproteronesdermatologicdeuteranopesdeuteranopicdiageotropicdiastereomerdichlorvosesdichroscopesdifunctionaldigressionaldilatationaldiphtheroidsdodecaphoniceisteddfodaueisteddfodicelectroformselectrotonicenterostomaleucalyptolesexcavationalexpressionalflameprooferfluegelhornsfluoroscopedfurunculosesgallerygoersgastroscopesgastroscopicglutathionesgrandifloraegrandiflorasgreaseproofshallucinoseshalterbrokenherringbonedheteroploidsheteroploidyheterotrophshomeschooledhyperostoseshyperostotichypodiploidyimbibitionalindicationalinhalationalinterboroughinterinvolveintermitoticinterschoolsinvocationalirrotationaljourneyworksketosteroidskinetochoreskinetoscopesknuckleboneslacquerworkslamellicornsleukocytosesleukocytosislevitationallimitationalmacrocytosesmacrocytosismanifestoingmelanophoresmeningococcimesocyclonesmetasequoiasmiscaptionedmiscatalogedmisdevelopedmotoneuronalnephrostomesneurohumoralnoncrossovernonpsychoticonychophoranotosclerosesotosclerosisoverborrowedoverdiscountoverenamoredoverexploitsoverpromotedoverpromotesoverrespondspassageworksperorationalphagocytosedphagocytosesphagocytoticphotochromicphytochromesplagiotropicplasterworkspogonophoranpolariscopicpolyhedrosespolyhedrosispolyhistoricpolyphenolicpopulationalpossessionalprecautionedpreportionedpretensionedproductionalprojectionalpronephrosesprophethoodsprotophloemsquadriphonicrepetitionalreputationalretransformsrottenstonessaddleclothssarcomatosesscattergoodsschistosomalscyphistomaescyphistomassecretagogueservanthoodsshacklebonesshittimwoodssniperscopessomatotropinspatterdocksspeciationalstethoscopicstonemasonrysuperheroinesuperschoolssynaptosomalsynaptosomessynarthrosessynarthrosistechnetronictetrodotoxintheatergoingthermoscopesthermotropictimberdoodletoddlerhoodstrellisworkstribespeopletrochophorestrypanosomesundecomposedunderreportsunillusionedunorthodoxlyurediospores

About this list

Words
507 (136 common words)
Common example
aberrational
Rare example
zwitterionic
Doubled letters
119
Ending in S
201
Most frequent letter
E (384)

Questions

How many 12-letter words matching ________o___ are there?

507. 136 of them are common words.

What is a common example?

ABERRATIONAL is among the common words in this set.