There are 746 thirteen-letter words containing A, E, O, R and U, https://www.bestwordlist.com/c/a/5/13letterwordswithaeoru.htm ACCOUSTREMENT ACCOUTERMENTS ACCOUTREMENTS ADULTERATIONS ADVENTURESOME ADVENTUROUSLY AEROACOUSTICS AEROSTRUCTURE AFORETHOUGHTS AFTERTHOUGHTS AGRANULOCYTES AILOUROPHILES AILOUROPHOBES ALUMINIFEROUS ALUMINOTHERMY AMARANTACEOUS AMBIDEXTEROUS AMOROUSNESSES AMORPHOUSNESS ANGIOSPERMOUS ANTENNIFEROUS ANTHRAQUINONE ANTIBOURGEOIS ANTINEUTRINOS ANTIRELIGIOUS APATOSAURUSES APHANIPTEROUS APOSTROPHUSES APPROPINQUATE ARBORICULTURE ARDUOUSNESSES ARGENTIFEROUS ARGILLIFEROUS ARGUMENTATION ARTERIOVENOUS ARUNDINACEOUS ATROCIOUSNESS AUCTIONEERING AUDIOMETRISTS AUTHENTICATOR AUTHORITATIVE AUTOCORRECTED AUTOCRITIQUES AUTODESTRUCTS AUTOEROTICISM AUTOEXPOSURES AUTOINJECTORS AVERRUNCATION AVERRUNCATORS AVOIRDUPOISES BACKCOUNTRIES BACKGROUNDERS BACULOVIRUSES BALSAMIFEROUS BARBAROUSNESS BATTLEGROUNDS BEHAVIOURALLY BEHAVIOURISMS BEHAVIOURISTS BIMOLECULARLY BLABBERMOUTHS BOARDINGHOUSE BORAGINACEOUS BOULEVARDIERS BRACHYPTEROUS BRASSFOUNDERS BRASSICACEOUS BREAKTHROUGHS BREASTPLOUGHS BROMELIACEOUS CALCARIFEROUS CAMPHORACEOUS CARBONIFEROUS CARILLONNEURS CARIOUSNESSES CAULIFLOWERET CAUTERISATION CAUTERIZATION CAVERNICOLOUS CENTURIATIONS CERAUNOGRAPHS CERULOPLASMIN CETEOSAURUSES CHANGEAROUNDS CHAPTERHOUSES CHEMAUTOTROPH CHEMOAUTROPHS CHEMOSURGICAL CHEQUERBOARDS CHORUSMASTERS CIRCUMROTATED CIRCUMROTATES CLAMOROUSNESS CLAUSTROPHOBE CLEARINGHOUSE COACHBUILDERS COADJUTRESSES COASTGUARDMEN COBALTIFEROUS COLUMNARITIES COMMEASURABLE COMMENSURABLE COMMENSURABLY COMMUNALISERS COMMUNALIZERS COMMUNAUTAIRE COMMUNITAIRES CONCUBINARIES CONFIGURATIVE CONGRATULABLE CONGRATULATED CONGRATULATES CONJECTURABLE CONJECTURABLY CONJECTURALLY CONNATURALISE CONNATURALIZE CONNUMERATING CONNUMERATION CONSTRUCTABLE CONTRASEXUALS CONTRIBUTABLE CONTRITURATED CONTRITURATES CORALLIFEROUS CORALLIGENOUS CORONAVIRUSES COUNTENANCERS COUNTERACTING COUNTERACTION COUNTERACTIVE COUNTERAGENTS COUNTERARGUED COUNTERARGUES COUNTERATTACK COUNTERBLASTS COUNTERBRACED COUNTERBRACES COUNTERCHANGE COUNTERCHARGE COUNTERCHARMS COUNTERCLAIMS COUNTERDEMAND COUNTERIMAGES COUNTERMANDED COUNTERPLAYED COUNTERPLAYER COUNTERPLEADS COUNTERRAIDED COUNTERSCARPS COUNTERSEALED COUNTERSHAFTS COUNTERSTAINS COUNTERSTATED COUNTERSTATES COUNTERSTREAM COUNTERTACTIC COUNTERTHREAT COUNTERTRADED COUNTERTRADES COUNTERVAILED CRAPULOSITIES CRAPULOUSNESS CRASSULACEOUS CREATUREHOODS CUSTOMARINESS CYLINDRACEOUS DAGUERREOTYPE DAGUERREOTYPY DANGEROUSNESS DAUGHTERBOARD DAUGHTERHOODS DECARBURATION DECRUSTATIONS DEFRAUDATIONS DEGRANULATION DEMAGOGUERIES DENATURATIONS DEREGULATIONS DESATURATIONS DESTRUCTIONAL DESULFURATION DETRUNCATIONS DEUTERAGONIST DEUTERANOMALY DEUTERANOPIAS DEUTEROGAMIES DEUTEROGAMIST DEUTEROPLASMS DEVOLUTIONARY DIATHERMANOUS DIBENZOFURANS DISAUTHORISED DISAUTHORISES DISAUTHORIZED DISAUTHORIZES DISHONOURABLE DISREPUTATION DOCUMENTARIAN DOCUMENTARIES DOCUMENTARILY DOCUMENTARISE DOCUMENTARIST DOCUMENTARIZE DOUBLEHEADERS DOUBLESPEAKER DRAUGHTSWOMEN ECCREMOCARPUS EDULCORATIONS EFFIGURATIONS ELUCUBRATIONS ENCOURAGEMENT ENCOURAGINGLY ENCRUSTATIONS ENCULTURATION ENDEAVOURMENT EQUILIBRATION EQUILIBRATORS EQUILIBRATORY EQUIMOLECULAR EQUIPARATIONS EQUIPARTITION EQUIPONDERANT EQUIPONDERATE ERYSIPELATOUS EUDIOMETRICAL EUROTERMINALS EUSPORANGIATE EXCRUCIATIONS EXPOSTULATORS EXPOSTULATORY EXPURGATORIAL EXULCERATIONS FLUORAPATITES FLUOROACETATE FLUTTERBOARDS FORMULARISERS FORMULARIZERS FORTUNATENESS FOUNDATIONERS FRACTIOUSNESS FREQUENTATION FRUMENTACEOUS FRUMENTARIOUS FRUMENTATIONS FUNCTIONARIES FURACIOUSNESS FURAZOLIDONES GARNETIFEROUS GARRULOUSNESS GASTEROPODOUS GASTROCNEMIUS GEMMIPAROUSLY GENITOURINARY GESTICULATORS GESTICULATORY GLAMOROUSNESS GLAMOURPUSSES GLOBULARITIES GLUCURONIDASE GRANDILOQUENT GRANULIFEROUS GROSSULARITES GROUNDBREAKER GUBERNATORIAL HADROSAURUSES HALFSERIOUSLY HAZARDOUSNESS HELIOGRAVURES HERPETOFAUNAE HERPETOFAUNAS HETEROCARPOUS HETEROOUSIANS HETEROSEXUALS HETEROTACTOUS HEXAFLUORIDES HILARIOUSNESS HIPPOCENTAURS HOUSEBREAKERS HOUSEBREAKING HOUSEPAINTERS HOUSEWARMINGS HYALURONIDASE HYDROCEPHALUS HYDROMEDUSANS HYDROSULPHATE HYPERAROUSALS HYPERCAUTIOUS HYSTERANTHOUS IMMUNOTHERAPY IMPORTUNACIES IMPORTUNATELY INCONSTRUABLE INOPERCULATES INSUBORDINATE INSUPPORTABLE INTERCOLUMNAR INTERCOMMUNAL INTERLUNATION INTERMOUNTAIN INTERNEURONAL INTEROSCULANT INTEROSCULATE INTRAVENOUSLY ISOSTHENURIAS KATHAREVOUSAS KERAUNOGRAPHS LABORIOUSNESS LAUGHWORTHIER MACROMOLECULE MACRONUTRIENT MAMMALIFEROUS MANGANIFEROUS MANGOLDWURZEL MANUFACTORIES MARVELOUSNESS MEGALOSAURIAN MELANOCHROOUS MEMBRANACEOUS MENSTRUATIONS MENSURATIONAL METACOMPUTERS METALLIFEROUS MICROCAPSULES MISBEHAVIOURS MISDEMEANOURS MISPERSUASION MONOMOLECULAR MONOSATURATED MONOTREMATOUS MOUNTAINEERED MOUNTEBANKERY MOUSETRAPPING MOUSQUETAIRES MOUTHBREATHER MOUTHWATERING MULTIAUTHORED MULTIREGIONAL MUSICOTHERAPY MUZZLELOADERS MYCOBACTERIUM NANOSTRUCTURE NATUROPATHIES NECTARIFEROUS NECTARIVOROUS NEFARIOUSNESS NEMATODIRUSES NEUROANATOMIC NEUROBLASTOMA NEUROCHEMICAL NEUROFEEDBACK NEUROFIBRILAR NEUROFIBROMAS NEUROHORMONAL NEUROIMAGINGS NEUROMUSCULAR NEUROPATHICAL NEUROPATHISTS NEUROSURGICAL NEUROVASCULAR NOMENCLATURAL NOMENCLATURES NOMENKLATURAS NONEQUILIBRIA NONFIGURATIVE NONGREGARIOUS NONINSURANCES NONMEASURABLE NONREFUNDABLE NONREGULATION NONREGULATORY NONRETURNABLE NONUNIVERSALS NUMEROLOGICAL ORACULARITIES ORACULOUSNESS OSTREOPHAGOUS OUTGENERALING OUTGENERALLED OUTMANEUVERED OUTMANOEUVRED OUTMANOEUVRES OUTRECUIDANCE OUTTRAVELLING OUTWARDNESSES OVERABOUNDING OVERABUNDANCE OVERADJUSTING OVERAMBITIOUS OVERCAREFULLY OVEREDUCATING OVEREDUCATION OVERENAMOURED OVERENCOURAGE OVEREVALUATED OVEREVALUATES OVEREXUBERANT OVERFATIGUING OVERFAVOURING OVERINSURANCE OVERISSUANCES OVERLABOURING OVERLAUNCHING OVERMEASURING OVERPERSUADED OVERPERSUADES OVERPOPULATED OVERPOPULATES OVERQUALIFIED OVERREGULATED OVERREGULATES OVERSATURATED OVERSATURATES OVERSLAUGHING OVERSPECULATE OVERSTIMULATE OVERVALUATION OVERZEALOUSLY PALAEOCURRENT PAPAVERACEOUS PAPILLIFEROUS PAPOVAVIRUSES PARABOLANUSES PARADOXURINES PARAMOUNTCIES PARLOUSNESSES PARTICOLOURED PASQUEFLOWERS PAUPERISATION PAUPERIZATION PEDAGOGUERIES PERAMBULATION PERAMBULATORS PERAMBULATORY PERIMENOPAUSE PERIOSTRACUMS PERLUSTRATION PERMUTATIONAL PERPETUATIONS PERSCRUTATION PERSPICACIOUS PERTURBATIONS PHANEROGAMOUS PHOTOGRAVURES PLATINIFEROUS PLESIOSAURIAN PLEUROCARPOUS PNEUMATOMETER PNEUMATOMETRY PNEUMATOPHORE PNEUMOGASTRIC POLYURETHANES PORCELAINEOUS PORCELLANEOUS POSTGRADUATES POSTMENSTRUAL PRASEODYMIUMS PREADULTHOODS PREAMBULATORY PREANNOUNCING PREAUTHORIZED PREAUTHORIZES PRECAUTIONARY PRECAUTIONING PRECOPULATORY PREFIGURATION PREFORMULATED PREFORMULATES PREGUSTATIONS PREJUDICATION PREMENOPAUSAL PREMENOPAUSES PREOCCUPATING PREOCCUPATION PRESBYACOUSES PRESBYACOUSIS PRETOURNAMENT PROCONSULATES PROCURATORIES PRONOUNCEABLE PRONUCLEARIST PROPAEDEUTICS PROSECUTORIAL PROTEINACEOUS PROTERANDROUS PROTOLANGUAGE PROTUBERANCES PROTUBERANTLY PROTUBERATING PROTUBERATION PSEUDOCARPOUS PSEUDOMARTYRS PSEUDOSCALARS PTEROSAURIANS PULVERISATION PULVERIZATION PUTREFACTIONS PYROSULPHATES QUADRAPHONIES QUADRIFOLIATE QUADRISECTION QUADROPHONIES QUAESTORSHIPS QUANGOCRACIES QUARRELSOMELY QUARTODECIMAN QUARTZIFEROUS QUASIPERIODIC QUATERNIONIST QUATTROCENTOS QUESTIONARIES QUESTIONNAIRE RACONTEURINGS RADIONUCLIDES RANCOROUSNESS RAPACIOUSNESS RAPTUROUSNESS RAUCOUSNESSES REACCUSTOMING REACQUISITION REASSUMPTIONS REATTRIBUTION REAUTHORISING REAUTHORIZING RECALCULATION RECATALOGUING RECIRCULATION RECOMPUTATION RECULTIVATION RECUPERATIONS REDUPLICATION REEVALUATIONS REFORMULATING REFORMULATION REFOUNDATIONS REGURGITATION REINOCULATING REINOCULATION REJUVENATIONS RELUBRICATION REMUNERATIONS RENATURATIONS RENUNCIATIONS REOCCUPATIONS REPOPULARISED REPOPULARISES REPOPULARIZED REPOPULARIZES REPOPULATIONS REPROACHFULLY REPUBLICATION REPUNCTUATION REREGULATIONS RESTAURATIONS RESTIMULATION RESUPINATIONS RESUSCITATION RESUSCITATORS RETICULATIONS REUNIFICATION REUTILISATION REUTILIZATION REVOLUTIONARY RHABDOVIRUSES RHEUMATOLOGIC RHOPALOCEROUS RIBONUCLEASES RONTGENOPAQUE ROUTEMARCHING RUGGEDISATION RUGGEDIZATION SARCOPHAGUSES SARMENTACEOUS SARRUSOPHONES SAVOURINESSES SCLEROCAULIES SCLEROCAULOUS SCROBICULATED SECRETAGOGUES SEMIOVIPAROUS SENSORINEURAL SEQUESTRATION SEQUESTRATORS SHOCKUMENTARY SHUFFLEBOARDS SIMARUBACEOUS SOMATOPLEURAL SOMATOPLEURES SOMATOPLEURIC SOMERSAULTING SOUTHEASTERLY SOUTHEASTWARD SOUTHWESTWARD STAMINIFEROUS STEGOSAURIANS STEGOSAURUSES STERCORACEOUS STERCORARIOUS STEREOREGULAR STERNUTATIONS STREPTOCARPUS STROBILACEOUS SUBCATEGORIES SUBCATEGORISE SUBCATEGORIZE SUBCONTRACTED SUBCONTRARIES SUBCORIACEOUS SUBDEACONRIES SUBEQUATORIAL SUBERISATIONS SUBERIZATIONS SUBGENERATION SUBORDINARIES SUBORDINATELY SUBORDINATIVE SUBTERRANEOUS SUBVENTIONARY SUBVERSIONARY SULFONYLUREAS SULFORAPHANES SULPHONYLUREA SUOVETAURILIA SUPERABOUNDED SUPERADDITION SUPERCAUTIOUS SUPERCOLOSSAL SUPERCOLUMNAR SUPERDIPLOMAT SUPERDOMINANT SUPEREROGATED SUPEREROGATES SUPEREROGATOR SUPERFETATION SUPERFRONTALS SUPERLOYALIST SUPERMAJORITY SUPERNATATION SUPERNATIONAL SUPERNORMALLY SUPERORDINARY SUPERORDINATE SUPERORGANISM SUPEROVULATED SUPEROVULATES SUPERPATRIOTS SUPERPERSONAL SUPERREGIONAL SUPERROMANTIC SUPERSTARDOMS SUPERSTATIONS SUPRAMOLECULE SUPRATEMPORAL SURROGATESHIP SUSPERCOLLATE TAUTOMETRICAL TELAUTOGRAPHY TELEOSAURIANS TEMERARIOUSLY TETRADYNAMOUS TETRAFLUORIDE TETRASTICHOUS THERMONUCLEAR THOROUGHBRACE THOROUGHFARES THOROUGHPACED THOROUGHWAXES TREACHEROUSLY TREPONEMATOUS TROUBLEMAKERS TROUBLEMAKING TUBERCULATION TUBERCULOMATA TUBOCURARINES TURACOVERDINS TURBOCHARGERS TYRANNOUSNESS ULTRAMONTANES ULTRAPOWERFUL ULTRAVIOLENCE UNADVENTUROUS UNAPPROPRIATE UNCHLORINATED UNCOMFORTABLE UNCONFORMABLE UNCONQUERABLE UNCONQUERABLY UNCONSECRATED UNCONSECRATES UNCONSTRAINED UNCONVERSABLE UNCOOPERATIVE UNCOORDINATED UNCORRECTABLE UNDERCOATINGS UNDERDIAGNOSE UNDERPASSIONS UNDERREACTION UNDISCOURAGED UNDOCTRINAIRE UNENCOURAGING UNENFORCEABLE UNFORESEEABLE UNFORESEEABLY UNFORGETTABLE UNFORGETTABLY UNFORTUNATELY UNIMPORTANCES UNINFORCEABLE UNINFORMATIVE UNIPOLARITIES UNOBSERVABLES UNOBSERVANCES UNPERFORMABLE UNPOLARISABLE UNPOLARIZABLE UNPROBLEMATIC UNPROPHETICAL UNPROVOCATIVE UNREASONINGLY UNRECOVERABLE UNRECOVERABLY UNREPROACHFUL UNREPROACHING UNSAVOURINESS UNSCHOLARLIKE UNSMOTHERABLE UNSTERCORATED UNSUPPORTABLE UNTHEORETICAL UNTRANSFORMED UNWORKMANLIKE URANOGRAPHERS URANOGRAPHIES URANOPLASTIES VAPOURISHNESS VARIOUSNESSES VENTRILOQUIAL VERACIOUSNESS VERMICULATION VERUMONTANUMS VICARIOUSNESS VITUPERATIONS VOLUNTARINESS VORACIOUSNESS XERODERMATOUS