19 Letter Words Containing O
There are 289 19-letter words containing O, listed alphabetically. Every entry is a valid play in Scrabble and Words With Friends, sorted so you can scan them quickly. Tap any word to open its definition, see exactly how many points it scores on each board, and discover the anagrams and shorter words hiding inside it.
289 words
accommodativenesses31adrenocorticotropic28adrenocorticotropin26adventuresomenesses25agammaglobulinemias29angiocardiographies29anthropocentrically31anthropomorphically36anticholinesterases24anticonservationist24antidesertification25antiferromagnetisms27antifluoridationist23antirevolutionaries22antivivisectionists27authoritativenesses25bacteriochlorophyll36bourgeoisifications27characterologically32chlorofluorocarbons31chlorofluoromethane32chromatographically37chromolithographers35chromolithographies35chromolithographing36cinematographically34clinicopathological31communicativenesses30companionablenesses27compassionatenesses25complementarinesses27comprehensibilities30comprehensivenesses31conceptualistically30conscientiousnesses23consequentialnesses30constitutionalities21constitutionalizing31contemplativenesses28contemporaneousness25contradictorinesses24contradistinctively30contradistinguished27contradistinguishes26conventionalization33counteradvertisings26counterconditioning25counterconspiracies27counterculturalisms25counterdemonstrated25counterdemonstrates24counterdemonstrator24counterinflationary27counterinstitutions21counterinsurgencies24counterintelligence24countermobilization34counterprogrammings29counterreformations26counterretaliations21countersurveillance26countertransference26crosslinguistically27cytodifferentiation31cytopathogenicities32dehydrochlorinating33dehydrochlorination32deindustrialization30deinstitutionalized30deinstitutionalizes29demonstrativenesses25dendrochronological29dendrochronologists27deoxyribonucleotide35departmentalization33diastereoisomerisms24diethylstilbestrols28dimethylnitrosamine30directionlessnesses22disadvantageousness25dispassionatenesses22disproportionations24electrocardiographs30electrocardiography33electrocorticograms28electrodesiccations26electrodynamometers29electroluminescence27electromagnetically29electromechanically33electrometallurgies24electronegativities25electrophoretically31electrophoretograms29electrophotographic34electrophysiologies30electrophysiologist30electroretinographs27electroretinography30encephalomyelitides32ethnomethodologists29evapotranspirations26exhibitionistically36expressionistically33extraordinarinesses27extraterritoriality29gastroenterological23gastroenterologists21glottochronological28heterogeneousnesses23histopathologically33historiographically33homotransplantation26hydrochlorothiazide44hydrometeorological31hydrometeorologists29hyperconcentrations31hyperemotionalities29hyperparathyroidism38hypersensitizations36hypoparathyroidisms38immunocytochemistry38immunofluorescences30immunohematological31immunohematologists29immunohistochemical35immunoprecipitating30immunoprecipitation29impressionabilities25impressionistically28inappropriatenesses25incommunicabilities29incomprehensibility33inconceivablenesses28inconsideratenesses22inconspicuousnesses25inefficaciousnesses29instantaneousnesses19intellectualization30intercommunications27interconvertibility29interdenominational22interferometrically29interjurisdictional29interorganizational29interstratification24introspectivenesses26irreconcilabilities25irrecoverablenesses26irreproachabilities28irreproducibilities26irresponsiblenesses23knowledgeablenesses30lipopolysaccharides34magnetohydrodynamic37meningoencephalitic31meningoencephalitis29methylcholanthrenes35methylprednisolones30microdensitometries26microelectronically30microencapsulations27micrometeorological28micrometeorologists26micropaleontologies26micropaleontologist26miscellaneousnesses23mischaracterization37mucopolysaccharides36multidimensionality27multitudinousnesses22neurofibromatosises26neuropharmacologies29neuropharmacologist29nonenforceabilities26noninterventionists22nonproductivenesses27nonrelativistically27nonrepresentational21objectionablenesses32otorhinolaryngology30overambitiousnesses26overcapitalizations35overcentralizations33overclassifications29overcommercializing40overdifferentiation29overgeneralizations32overidentifications28overindustrializing33overintellectualize33overinterpretations24overproportionately29overrepresentations24oversensitivenesses25oversimplifications31overspecializations35ovolactovegetarians28ovoviviparousnesses30paleoanthropologies27paleoanthropologist27paleoclimatologists26paleogeographically33paradichlorobenzene38parasympathomimetic37parathyroidectomies32parthenogenetically30perspicaciousnesses27pharmacodynamically39phenomenalistically31phenylpropanolamine33phenylthiocarbamide37phonocardiographies33phosphatidylcholine38phosphoenolpyruvate37phosphofructokinase38phosphoglucomutases34phosphomonoesterase31photoconductivities32photodecompositions31photodisintegrating27photodisintegration26photofluorographies33photointerpretation26photoreconnaissance28photosensitizations33phytogeographically39phytohemagglutinins34polychromatophilias36polyesterifications29polyribonucleotides29postmillenarianisms25posttranscriptional25professionalization33proletarianizations30pseudosophisticated30psychopharmacologic41psychophysiological40psychophysiologists38psychotomimetically38radioallergosorbent23radiopharmaceutical31reconceptualization34reindustrialization29reinstitutionalized29reinstitutionalizes28representationalism23representationalist21reticuloendothelial25revolutionarinesses22sanctimoniousnesses23semiconsciousnesses25sentimentalizations30spectrofluorimeters28spectrofluorometers28spectrofluorometric30spectrophotometries30splendiferousnesses25stereophotographies30stereospecificities28straightforwardness30superadministrators24superconductivities29superspecialization34symptomatologically34territorializations28thermoelectricities28thermoluminescences30thermoperiodicities29transformationalist24transmogrifications27transubstantiations21tridimensionalities22ultracentrifugation25ultracontemporaries25ultrasegregationist21unapproachabilities30unceremoniousnesses23uncompetitivenesses28unconscionabilities25unconstitutionality24uncontrollabilities23unconventionalities24undemonstrativeness25underrepresentation22unexceptionableness32unfashionablenesses27unidimensionalities22unpretentiousnesses21
Containing O by length
2 letters 243 letters 2314 letters 10535 letters 25336 letters 47807 letters 79508 letters 114039 letters 1121910 letters 1017611 letters 858512 letters 696513 letters 519314 letters 357615 letters 234016 letters 142617 letters 88918 letters 48619 letters 28920 letters 14721 letters 5522 letters 2523 letters 1024 letters 9