There are 819 eleven-letter words containing A, O, S, T and U, https://www.bestwordlist.com/c/a/5/11letterwordswithaostu.htm ABJUNCTIONS ABJURATIONS ABLATITIOUS ABLUTOMANES ABORTUARIES ABSOLUTIONS ABSOLUTISED ABSOLUTISES ABSOLUTISMS ABSOLUTISTS ABSOLUTIVES ABSOLUTIZED ABSOLUTIZES ABSTENTIOUS ACCLIVITOUS ACCOUNTANTS ACCOUNTINGS ACCUBATIONS ACCUSATIONS ACCUSTOMARY ACCUSTOMING ACETONURIAS ACHROMATOUS ACOUSTICIAN ACQUISITION ACQUISITORS ADDITITIOUS ADENOMATOUS ADJUNCTIONS ADJURATIONS ADVENTUROUS AERONAUTICS AGRITOURISM AGRITOURIST AGROTOURISM AGROTOURIST AKOLUTHOSES ALLOCUTIONS ALLOTROPOUS ALTOCUMULUS ALTOSTRATUS ALUMINOSITY AMBITIOUSLY AMBULATIONS AMENTACEOUS AMETABOLOUS AMMUNITIONS AMPULLOSITY AMPUTATIONS ANFRACTUOUS ANGIOMATOUS ANGULATIONS ANNULATIONS ANTIBILIOUS ANTIMONIOUS APATOSAURUS APOLAUSTICS APOSTROPHUS AQUAFORTIST ASCITITIOUS ASSUMPTIONS ASTOUNDMENT ASTRONAUTIC ASTROTURFER ASTUCIOUSLY ATHERMANOUS ATRABILIOUS ATRAMENTOUS ATROCIOUSLY ATTENUATORS ATTRIBUTORS AUCTIONEERS AUDIOLOGIST AUDIOMETERS AUDIOTYPIST AUDITIONERS AUDITORIUMS AUDITORSHIP AUSCULTATOR AUTHORESSES AUTHORISERS AUTHORISING AUTHORITIES AUTHORIZERS AUTHORSHIPS AUTOCHTHONS AUTOCRACIES AUTOCROSSES AUTODIDACTS AUTOEROTISM AUTOFOCUSES AUTOGENESES AUTOGENESIS AUTOJUMBLES AUTOKINESES AUTOKINESIS AUTOLATRIES AUTOLOADERS AUTOLYSATES AUTOLYZATES AUTOMATIONS AUTOMATISED AUTOMATISES AUTOMATISMS AUTOMATISTS AUTOMATIZES AUTOMOBILES AUTONOMISTS AUTOPHAGIAS AUTOPHAGIES AUTOPHAGOUS AUTOPHANOUS AUTOPHOBIAS AUTOPHOBIES AUTOPHONIES AUTOPLASTIC AUTOREPLIES AUTOREVERSE AUTOROTATES AUTOSAMPLER AUTOSCOPIES AUTOSEXINGS AUTOSOMALLY AUTOSTRADAS AUTOSUGGEST AUTOTELLERS AUTOTHEISMS AUTOTHEISTS AUTOTOMISED AUTOTOMISES AUTOTOMIZES AUTOWINDERS AUTOWORKERS AVOUCHMENTS BAROTRAUMAS BARRACOUTAS BEANSPROUTS BEAUTEOUSLY BETULACEOUS BLUETHROATS BRONTOSAURS BROUGHTASES BUCCINATORS BUCKETLOADS BUOYANTNESS BURGOMASTER BUTTONBALLS BUTYLATIONS BUTYRACEOUS CAFETORIUMS CALCULATORS CANTALOUPES CANULATIONS CAOUTCHOUCS CAPSULATION CARBURETORS CARNAPTIOUS CATADROMOUS CATALOGUERS CATALOGUISE CATALOGUIST CATARACTOUS CAUSATIONAL CAUTIONRIES CEANOTHUSES CERATODUSES CETEOSAURUS CHAMPERTOUS CHARTACEOUS CHARTHOUSES CIGUATOXINS CIRCULATORS COADJUTANTS COADJUTRESS COAGULATORS COASTGUARDS COATIMUNDIS COLATITUDES COLLARSTUDS COLLIQUATES COLORATURAS COLORATURES COLOURCASTS COMITATUSES COMMUNALIST COMMUTATORS COMPACTURES COMPUTATORS CONJUGATORS CONJURATORS CONSTRUABLE CONSTUPRATE CONSULTABLE CONSULTANCY CONSULTANTS CONSUMMATED CONSUMMATES CONSUMMATOR CONTINUANTS CONTRARIOUS CONTUMACIES CONVENTUALS CONVULSANTS COPULATIONS COPULATIVES CORRUGATORS CORUSCATING CORUSCATION COTRANSDUCE COTYLOSAURS COUNTERACTS COUNTERBASE COUNTERSANK COUNTERSEAL COUNTRYSEAT COURTCRAFTS CRAPULOSITY CRUSTACEOUS CRUSTATIONS CULTIVATORS CUMULATIONS CUNCTATIONS CUNCTATIOUS CURATORSHIP CURNAPTIOUS CUSPIDATION CUSTOMARIES CUSTOMARILY CUTANEOUSLY DECUSSATION DEGUSTATION DEGUSTATORY DEMODULATES DENUDATIONS DEPOPULATES DEPURATIONS DEPUTATIONS DESPUMATION DEUTOPLASMS DIACOUSTICS DIATHERMOUS DIDACTYLOUS DISACCUSTOM DISMUTATION DISPUTATION DIVULGATORS DRUNKATHONS DUBITATIONS DUPLICATORS EAVESTROUGH EBURNATIONS ECTOSARCOUS EDULCORATES EJACULATORS ELUCIDATORS ELUTRIATORS ELUVIATIONS EMASCULATOR ENUMERATORS ENUNCIATORS EPIGNATHOUS EPIPETALOUS EQUATORIALS EQUITATIONS EQUIVOCATES ERUCTATIONS ETHAMBUTOLS EUCALYPTOLS EUDAEMONIST EUDAIMONIST EUPATORIUMS EUPHORIANTS EUROMARKETS EUSOCIALITY EVACUATIONS EVALUATIONS EXHAUSTIONS EXHUMATIONS EXPOSTULATE EXPURGATORS EXTENUATORS EXULTATIONS EXUVIATIONS FACETIOUSLY FANTABULOUS FATUOUSNESS FAVOURITISM FEARNOUGHTS FECUNDATORS FEUDATORIES FIBROMATOUS FIGURATIONS FILAMENTOUS FLAVOURIEST FLAVOURISTS FLIRTATIOUS FLOATHOUSES FLOCCULANTS FLOCCULATES FLUORIDATES FLUORINATES FLUSTRATION FOETIPAROUS FORMULATORS FOUNDATIONS FRACTIOUSLY FRUSTRATION FUGITATIONS FULMINATORS FUMATORIUMS FUMIGATIONS FUNCTIONALS FUSILLATION FUSTIGATION FUSTIGATORS FUSTIGATORY GARBURATORS GLAUCONITES GOATSUCKERS GRADUATIONS GRANULATORS GROUNDBAITS GUBERNATORS GUSTATORILY HEPTAGYNOUS HEPTAMEROUS HEPTANDROUS HETEROUSIAN HOLOCAUSTAL HOLOCAUSTIC HOUSEBOATER HOUSECRAFTS HOUSEFATHER HOUSEMASTER HOUSEPARENT HOUSEPLANTS HUMILIATORS HUMORALISTS ICHTHYOSAUR ILLUSTRATOR IMPOSTUMATE IMPUTATIONS INCUBATIONS INCULCATORS INDURATIONS INEQUATIONS INHUMATIONS INOCULATORS INOSCULATED INOSCULATES INSINUATION INSINUATORS INSINUATORY INSTAURATOR INSUFFLATOR INSULATIONS INTRAVENOUS INTRUSIONAL INTUBATIONS INUNDATIONS INUSITATION ITEROPAROUS JACULATIONS JOURNALISTS JUBILATIONS JUDICATIONS JUGULATIONS JUXTAPOSING KATADROMOUS KNOCKABOUTS LACTIFEROUS LACTIFLUOUS LACTOSURIAS LANGOUSTINE LARGEMOUTHS LATERITIOUS LATIFUNDIOS LAUDATORIES LAUNDROMATS LAUREATIONS LEPROMATOUS LEUCOBLASTS LEUCOPLASTS LEUKOBLASTS LIGAMENTOUS LIQUIDATORS LOBULATIONS LOCULAMENTS LOCULATIONS LOQUACITIES LUBRICATORS LUCUBRATORS LUMINATIONS LUSTRATIONS LYTHRACEOUS MACULATIONS MASTURBATOR MATURATIONS MENSURATION MENTHACEOUS METASEQUOIA METROSEXUAL MILQUETOAST MODULATIONS MONOLATROUS MORATORIUMS MORULATIONS MOUDIEWARTS MOUNTAINOUS MOUNTEBANKS MOUSTACHIAL MOUSTACHIOS MOUTHGUARDS MOUTHWASHES MULTANIMOUS MULTIFLORAS MULTIFOCALS MULTIPAROUS MULTISONANT MULTIVOCALS MUSCATORIUM MUSCULATION MUSSITATION MUSTACHIOED MUTATIONIST MUTILATIONS MUTTONHEADS MYELOMATOUS MYSTAGOGUES NATATORIUMS NATUROPATHS NAUSEATIONS NEMATODIRUS NEUROBLASTS NEUROMATOUS NIDULATIONS NITROFURANS NOCTIVAGOUS NODULATIONS NONUTOPIANS NOUMENALIST NOVACULITES NUCLEATIONS NUMERATIONS NYCTANTHOUS OBDURATIONS OBFUSCATING OBFUSCATION OBFUSCATORY OBITUARISTS OBJURATIONS OBJURGATORS OBNUBILATES OBSCURANTIC OBSCURATION OBTRUNCATES OBTURATIONS OCCUPATIONS ONOCENTAURS ORGANISTRUM ORNITHOSAUR OSCULATIONS OSTRACODOUS OSTREACEOUS OUTACHIEVES OUTBALANCES OUTBARGAINS OUTBOASTING OUTBREATHES OUTCASTEING OUTCLASSING OUTCRAFTIES OUTDISTANCE OUTDOORSMAN OUTFEASTING OUTFLASHING OUTGASSINGS OUTGENERALS OUTHARBOURS OUTLAUNCHES OUTMASTERED OUTMEASURED OUTMEASURES OUTORGANISE OUTPASSIONS OUTPATIENTS OUTPREACHES OUTQUARTERS OUTREASONED OUTSAVORING OUTSAVOURED OUTSCREAMED OUTSMARTING OUTSPANNING OUTSPARKLED OUTSPARKLES OUTSPEAKING OUTSTANDING OUTSTARTING OUTSTATIONS OUTSTRAINED OUTSWEARING OUTVILLAINS OUTWARDNESS OVERADJUSTS PAPULATIONS PASTOURELLE PATCHOULIES PATHOGENOUS PECULATIONS PENTAGYNOUS PENTAMEROUS PENTANDROUS PETROLATUMS PHOTOMURALS PLOUGHGATES PLOUGHSTAFF PLOUGHTAILS POHUTUKAWAS POPULATIONS PORTMANTUAS POSTNUCLEAR POSTNUPTIAL POSTOCULARS POSTULATING POSTULATION POSTULATORS POSTULATORY POURTRAICTS PRAETORIUMS PRECAUTIONS PRECAUTIOUS PROCRUSTEAN PROCURATORS PROGNATHOUS PROMULGATES PROTANDROUS PROTEACEOUS PROTOHUMANS PUFTALOONAS PUNCTATIONS PUNCTUATORS PURGATORIES PUSTULATION QUADCOPTERS QUAESTORIAL QUANGOCRATS QUARTATIONS QUATERNIONS QUATORZAINS QUATREFOILS QUESTIONARY RACONTEUSES RAPPORTEURS RAPTUROUSLY REACCUSTOMS REAUTHORISE RECUSATIONS REFUTATIONS REGULATIONS REPOPULATES REPUDIATORS REPUTATIONS RETROSEXUAL RETROUSSAGE RHIZANTHOUS RHIZOMATOUS RHUMBATRONS ROTAVIRUSES ROUGHCASTED ROUGHCASTER ROUNDABOUTS ROUNDTABLES ROUSEABOUTS ROUSTABOUTS RUBRICATORS RUBYTHROATS RUMINATIONS RUSTICATION RUSTICATORS SABURRATION SACCULATION SALBUTAMOLS SALUTATIONS SANATORIUMS SANITORIUMS SANSCULOTTE SAPOTACEOUS SARCOMATOUS SARTORIUSES SATURATIONS SCORDATURAS SCOTOMATOUS SCOUTCRAFTS SCOUTMASTER SECUROCRATS SERRULATION SETACEOUSLY SHOOTAROUND SIMULATIONS SITUATIONAL SMALLMOUTHS SMARTMOUTHS SNAKEMOUTHS SOLDATESQUE SOMERSAULTS SOUNDSTAGES SOUNDTRACKS SOUTERRAINS SOUTHEASTER SOUTHLANDER SOUTHSAYING SOUTHWARDLY SPATHACEOUS SPECULATION SPECULATORS SPECULATORY SPICULATION SPONTANEOUS SPORULATING SPORULATION SPORULATIVE SQUAMATIONS STAMINODIUM STATEHOUSES STATUTORILY STAUROLITES STAUROLITIC STAUROSCOPE STEAKHOUSES STEGOSAURUS STERNUTATOR STIMULATION STIMULATORS STIMULATORY STIPULATION STIPULATORS STIPULATORY STOMACHFULS STOMODAEUMS STRAMINEOUS STRAMONIUMS STRATOPAUSE STRIDULATOR STUPRATIONS SUBALLOCATE SUBARRATION SUBAUDITION SUBCATEGORY SUBCOMPACTS SUBCONTRACT SUBCONTRARY SUBCORTICAL SUBDOMINANT SUBITANEOUS SUBJUGATION SUBJUGATORS SUBLIMATION SUBLITTORAL SUBLUXATION SUBNATIONAL SUBORDINATE SUBORNATION SUBORNATIVE SUBPANATION SUBRATIONAL SUBROGATING SUBROGATION SUBSTATIONS SUBSTRACTOR SUBTOTALING SUBTOTALLED SUBTRACTION SUBTRACTORS SUBTROPICAL SUCCOTASHES SUDATORIUMS SUFFIXATION SUFFLATIONS SUFFOCATING SUFFOCATION SUFFOCATIVE SUGARCOATED SULFONATING SULFONATION SULFURATION SULPHATIONS SULPHONATED SULPHONATES SULPHURATOR SUMMATIONAL SUPERATIONS SUPERNATION SUPEROCTAVE SUPINATIONS SUPPORTABLE SUPPORTABLY SUPPORTANCE SUPPURATION SUPRACOSTAL SURADDITION SURROGATING SURROGATION SURROGATUMS SUSCITATION SUSPIRATION SUSTENTATOR SUSURRATION SUTURATIONS SYMPETALOUS SYNGNATHOUS TABULATIONS TAMBOURINES TAUTOLOGIES TAUTOLOGISE TAUTOLOGISM TAUTOLOGIST TAUTOLOGOUS TAUTOMERISM TAUTONYMIES TAUTONYMOUS TCHOUKBALLS TEASPOONFUL TEMERARIOUS TEMPTATIOUS TENACIOUSLY TERRAQUEOUS TETRAGONOUS TETRAGYNOUS TETRAMEROUS TETRANDROUS TETRAPODOUS THEOPHAGOUS THEOPHANOUS THEREABOUTS THIOSULFATE THIOURACILS THOUGHTCAST THOUGHTWAYS THOUSANDTHS THROUGHWAYS THYSANUROUS TIBIOTARSUS TIBOUCHINAS TITANOSAURS TITUBATIONS TOGAVIRUSES TOUCHPAPERS TOURMALINES TOURNAMENTS TOXALBUMINS TOXIPHAGOUS TRADUCTIONS TRANSDUCTOR TRANSFUSION TRAVELOGUES TREACHEROUS TRIPETALOUS TRITURATORS TROPAEOLUMS TROPOPAUSES TROUBADOURS TROUVAILLES TRUNCATIONS TUBERACEOUS TUBULATIONS TURBOSHAFTS TURBULATORS TURNAROUNDS TYRANNOSAUR TYRANNOUSLY ULCERATIONS ULTRASMOOTH ULTRASONICS ULTRASOUNDS UMBONATIONS UMBRATILOUS UNABSORBENT UNAMBITIOUS UNAMORTISED UNAPOSTOLIC UNCUSTOMARY UNDERACTORS UNDULATIONS UNITISATION UNOBSERVANT UNSAVORIEST UNSEAWORTHY UNSOCIALITY UNSTOPPABLE UNSTOPPABLY URANOPLASTY UROGENITALS URTICACEOUS URTICARIOUS URTICATIONS USTULATIONS USUCAPTIONS USURPATIONS UTILISATION UTOPIANISED UTOPIANISER UTOPIANISES UTOPIANISMS UTOPIANIZES VAPULATIONS VEGETATIOUS VEXATIOUSLY VOCABULISTS VOLUNTARIES VOLUNTARISM VOLUNTARIST VOLUTATIONS WALNUTWOODS WATERCOURSE WATERSPOUTS WHEREABOUTS WHIRLABOUTS YOUTHQUAKES