There are 863 nine-letter words containing 2A and U, https://www.bestwordlist.com/c/a/3/9letterwordswithaau.htm ABOIDEAUS ABOIDEAUX ABOITEAUS ABOITEAUX ABORTUARY ABUNDANCE ABUNDANCY ACALCULIA ACANTHOUS ACCENTUAL ACCOURAGE ACCRUABLE ACCUSABLE ACCUSABLY ACCUSANTS ACELLULAR ACETABULA ACHAENIUM ACICULATE ACIDULATE ACIDURIAS ACQUAINTS ACQUIRALS ACQUITTAL ACTUALISE ACTUALIST ACTUALITE ACTUALITY ACTUALIZE ACTUARIAL ACTUARIES ACTUATING ACTUATION ACTUATORS ACULEATED ACULEATES ACUMINATE ACUTANCES ADJUTAGES ADJUTANCY ADJUTANTS ADJUVANCY ADJUVANTS ADMEASURE ADULARIAS ADULATING ADULATION ADULATORS ADULATORY ADUMBRATE ADUNCATED AERONAUTS AEROPAUSE AFFLUENZA AGERATUMS AGNATHOUS AGUACATES AILANTHUS ALARUMING ALFAQUINS ALGUACILS ALGUAZILS ALLELUIAH ALLELUIAS ALLOSAURS ALLUVIALS ALUMINATE AMAUROSES AMAUROSIS AMAUROTIC AMBAGIOUS AMBULACRA AMBULANCE AMBULANTS AMBULATED AMBULATES AMBULATOR AMBUSCADE AMBUSCADO AMENAUNCE AMIANTHUS AMPULLARY AMPUTATED AMPUTATES AMPUTATOR AMUSEABLE ANACRUSES ANACRUSIS ANALOGOUS ANALOGUES ANANDROUS ANANTHOUS ANGOSTURA ANGULARLY ANGULATED ANGULATES ANIMATEUR ANNUALISE ANNUALIZE ANNUITANT ANNULARLY ANNULATED ANNULATES ANOMALOUS ANOVULANT ANTELUCAN ANTIABUSE ANTIAUXIN ANTIFRAUD ANTIHUMAN ANTIQUARK ANTIQUARY ANTIQUATE ANTIURBAN ANUCLEATE APATOSAUR APERTURAL APETALOUS APIACEOUS APICULATE APOGAMOUS APPARATUS APPLAUDED APPLAUDER APPLAUSES AQUABATIC AQUABOARD AQUACADES AQUADROME AQUAFABAS AQUAFARMS AQUALUNGS AQUANAUTS AQUAPHOBE AQUAPLANE AQUAPORIN AQUARELLE AQUARIANS AQUARIIST AQUARISTS AQUARIUMS AQUAROBIC AQUASCAPE AQUASHOWS AQUATINTA AQUATINTS AQUATONES AQUILEGIA ARABESQUE ARAHUANAS ARAPUNGAS ARAUCARIA ARCATURES ARCHDUCAL ARCHOSAUR ARCUATELY ARCUATION ARETHUSAS ARGONAUTS ARGUMENTA ARMATURED ARMATURES ARMGUARDS AROUSABLE ARTICULAR ASEPALOUS ASEXUALLY ASPARAGUS ASPECTUAL ASPHALTUM ASSAULTED ASSAULTER ASSUAGERS ASSUAGING ASSUASIVE ASSUMABLE ASSUMABLY ASSURABLE ASSURANCE ASTRONAUT ATHENAEUM ATTENUANT ATTENUATE AUBRETIAS AUBRIETAS AUBRIETIA AUCTORIAL AUDACIOUS AUDIENCIA AUDIOGRAM AUDIOTAPE AUDITABLE AUDITORIA AULARIANS AULNAGERS AUMAILING AUREATELY AURELIANS AURICULAE AURICULAR AURICULAS AURORALLY AUSLANDER AUSPICATE AUSTRALES AUSTRALIS AUTACOIDS AUTARCHIC AUTARKIES AUTARKIST AUTHORIAL AUTOBAHNS AUTOBANKS AUTOCADES AUTOCARPS AUTOCIDAL AUTOCLAVE AUTOCRACY AUTOCRATS AUTODIALS AUTOFLARE AUTOGAMIC AUTOGRAFT AUTOGRAPH AUTOHARPS AUTOLATRY AUTOLOADS AUTOMAGIC AUTOMAKER AUTOMATED AUTOMATES AUTOMATIC AUTOMATON AUTOPHAGY AUTOPISTA AUTOPSIAS AUTOSAVED AUTOSAVES AUTOSOMAL AUXILIARS AUXILIARY AVASCULAR AVAUNTING AVIFAUNAE AVIFAUNAL AVIFAUNAS AVISANDUM AVIZANDUM AVUNCULAR AYAHUASCA AYAHUASCO AYURVEDAS AZIMUTHAL AZOTURIAS BABIRUSAS BABIRUSSA BABUSHKAS BACALHAUS BACKHAULS BALDAQUIN BALISAURS BANAUSIAN BARAGOUIN BARATHRUM BARBAROUS BAROSAURS BARRACUDA BASIFUGAL BAUHINIAS BIANNUALS BIGARREAU BLASTULAE BLASTULAR BLASTULAS BOUVARDIA BROUHAHAS BURRAWANG BURSARIAL CACAFUEGO CACHUCHAS CACUMINAL CAERULEAN CALABOGUS CALADIUMS CALAMUSES CALCANEUM CALCANEUS CALCTUFAS CALCULARY CALCULATE CALDARIUM CALENDULA CALIATOUR CALICULAR CALLALOUS CALVARIUM CALYCULAR CAMPANULA CANICULAR CANNULATE CANTALOUP CANTHARUS CANULATED CANULATES CAPACIOUS CAPITULAR CAPSULARY CAPSULATE CARBURATE CARCAJOUS CARDAMUMS CARIACOUS CARJACOUS CARNAHUBA CARNAUBAS CARNOSAUR CAROUSALS CARTULARY CARUCAGES CARUCATES CASCADURA CASUALISE CASUALISM CASUALIZE CASUARINA CATALOGUE CATAMOUNT CATAPULTS CATERWAUL CAUCHEMAR CAUDATION CAULINARY CAUMSTANE CAUSALGIA CAUSALGIC CAUSALITY CAUSATION CAUSATIVE CAUSEWAYS CAUSTICAL CAUTERANT CENTAUREA CHALUMEAU CHANUKIAH CHAQUETAS CHIHUAHUA CIGUATERA CLAUSTRAL CLAUSULAE CLAUSULAR CLAVICULA CLAVULATE COADUNATE COAGULANT COAGULASE COAGULATE COMATULAE COWABUNGA CREATURAL CRUSTACEA CUADRILLA CUMACEANS CURANDERA CURTALAXE CYANURATE DAMASQUIN DATABUSES DECAUDATE DEVALUATE DIAPAUSED DIAPAUSES DISABUSAL DOCUDRAMA DRAMATURG DULCAMARA DULCIANAS EASTABOUT EJACULATE ELAEAGNUS EPIFAUNAE EPIFAUNAL EPIFAUNAS EQUATABLE ESTUARIAL ESTUARIAN EULACHANS EUPHRASIA EUTHANASE EUTHANASY EUTHANAZE EVACUANTS EVACUATED EVACUATES EVACUATOR EVALUABLE EVALUATED EVALUATES EVALUATOR EXCAUDATE FABACEOUS FABULATED FABULATES FABULATOR FACTUALLY FAGACEOUS FALCULATE FANTASQUE FAUXMANCE FIORATURA FLAMBEAUS FLAMBEAUX FRACTURAL FRAUDSMAN FRAUGHANS FRAUTAGES FUMARASES FUMARATES FUMATORIA FURCRAEAS GADABOUTS GALBANUMS GAMAHUCHE GAMARUCHE GAMBUSIAS GARGANTUA GASPEREAU GASTRAEUM GASTRULAE GASTRULAR GASTRULAS GAUDEAMUS GAUGEABLE GAUGEABLY GLANDULAR GLAUCOMAS GLUTAMATE GRADUALLY GRADUANDS GRADUATED GRADUATES GRADUATOR GRANDAUNT GRANULARY GRANULATE GRANULOMA GRATULANT GRATULATE GUACAMOLE GUACHAROS GUAIACOLS GUAIACUMS GUANABANA GUANAZOLO GUARACHAS GUARACHES GUARACHIS GUARANIES GUARANTEE GUARANTOR GUARDABLE GUARDAGES GUARDANTS GUARDIANS GUARDRAIL GUARDSMAN GUAYABERA GURDWARAS HABITUALS HABITUATE HADROSAUR HANUKIAHS HARANGUED HARANGUER HARANGUES HATGUARDS HAULBACKS HAULYARDS HAUSFRAUS HAUSTELLA HAUSTORIA HAZARDOUS HEADGUARD HEMATURIA HIBAKUSHA HUARACHES HUARACHOS HUCKABACK HUNTAWAYS IGUANIANS INAUGURAL INAURATED INAURATES INFATUATE ISPAGHULA JACQUARDS JACULATED JACULATES JACULATOR JETTATURA KAUMATUAS KUMARAHOU LABDANUMS LABRUSCAS LACUNARIA LANDAULET LANGLAUFS LANGUAGED LANGUAGES LANTHANUM LAQUEARIA LAUDANUMS LAUDATION LAUDATIVE LAUDATORS LAUDATORY LAUGHABLE LAUGHABLY LAUNCHPAD LAUREATED LAUREATES LAYABOUTS LEUCAEMIA LEUKAEMIA LUMINARIA LUNANAUTS LUNARIANS LUNARNAUT LUNATICAL MACAHUBAS MACALLUMS MACRURANS MACULATED MACULATES MAGALOGUE MAGNALIUM MAIASAURA MAIASAURS MAIREHAUS MALAGUENA MALAMUTES MALARIOUS MAMAGUYED MANDUCATE MANGANOUS MANGULATE MANIPULAR MANUBRIAL MANUMATIC MANURANCE MAQUISARD MARABOUTS MARABUNTA MARAUDERS MARAUDING MARIHUANA MARIJUANA MARSQUAKE MARSUPIAL MARSUPIAN MATAGOURI MATRICULA MATSUTAKE MATURABLE MATURATED MATURATES MATUTINAL MAUSOLEAN MAXILLULA MAZAEDIUM MAZOURKAS MEGAFAUNA MEGAGAUSS MEGAQUAKE MEIOFAUNA MELALEUCA MELANURIA MESHUGAAS MEZZALUNA MOSASAURI MOSASAURS MOUSSAKAS MUCHACHAS MULTIPARA MUQADDAMS MUSCAVADO NAMAYCUSH NATURALLY NAUGAHYDE NAUMACHIA NAUSEANTS NAUSEATED NAUSEATES NAVICULAR NAVICULAS NEURALGIA NEUROMATA NONCASUAL NONCAUSAL NONMANUAL NULLIPARA NUNATAKER NUTARIANS OCEANAUTS OMADHAUNS ORANGUTAN PADUASOYS PAGURIANS PAHAUTEAS PALANQUIN PALLADIUM PALLADOUS PALUDINAL PALUSTRAL PANDURATE PANSEXUAL PAPPADUMS PARACHUTE PARACUSES PARACUSIS PARAGOGUE PARALOGUE PARAMOUNT PARAMOURS PARAMYLUM PARAQUATS PARAQUETS PARAQUITO PARAVAUNT PAROUSIAS PARTITURA PASPALUMS PASTURAGE PAULOWNIA PAURAQUES PENNATULA PERIAGUAS PLANULATE PLANURIAS PLATEAUED PLAUSTRAL PLUMDAMAS PLURIPARA PORTULACA POSTULATA PRAELUDIA PRECAUDAL PROPAGULA PUZZOLANA QUAALUDES QUADPLAYS QUADRANTS QUADRATED QUADRATES QUADRATIC QUADRATUS QUADRELLA QUADRIGAE QUADRIGAS QUADRIVIA QUADRUMAN QUAFFABLE QUAMASHES QUANDANGS QUANTALLY QUANTICAL QUARRIANS QUARRYMAN QUATRAINS QUILLAIAS QUILLAJAS RACAHOUTS RACCAHOUT RADICULAR RAMBUTANS RAMPAUGED RAMPAUGES RANARIUMS RAPACIOUS RAUWOLFIA REACTUATE REARGUARD REAROUSAL REVALUATE RIBATTUTA RUNAGATES RUSTICANA RUTABAGAS SACCHARUM SACCULATE SACRARIUM SAFEGUARD SAGACIOUS SAGAPENUM SALACIOUS SALERATUS SALIAUNCE SAMARIUMS SANCTUARY SAPUCAIAS SARGASSUM SASANQUAS SASQUATCH SATURABLE SATURANTS SATURATED SATURATER SATURATES SATURATOR SAUCEBOAT SAUCEPANS SAUFGARDS SCAPULARS SCAPULARY SEAQUAKES SEAQUARIA SEPARATUM SHAMATEUR SIMAROUBA SIMARUBAS SIMULACRA SITATUNGA SLANGUAGE SLANGULAR SOUVLAKIA SPATULATE SPIRACULA SQUAMATES SQUAMELLA SQUAMOSAL SQUAMULAS SQUARIALS SUBAERIAL SUBAHDARS SUBAHDARY SUBAPICAL SUBASTRAL SUBCAUDAL SUBSACRAL SUBSTRATA SUBVASSAL SUDAMINAL SUDATORIA SUFFRAGAN SUGARALLY SUGARCANE SUGARCOAT SUGARLOAF SULFATASE SULTANATE SURBAHARS TABLATURE TABULABLE TABULARLY TABULATED TABULATES TABULATOR TACAHOUTS TACTUALLY TAIKONAUT TALUKDARS TAMANDUAS TAMBOURAS TANTALOUS TANTALUMS TAPACULOS TAQUERIAS TARANTULA TARAXACUM TARPAULIN TARTAROUS TAXACEOUS TAYASSUID TENTACULA THAUMATIN THESAURAL TRABECULA TRADUCIAN TRAUMATIC TULAREMIA TURNAGAIN ULTRAFAST ULTRAHEAT ULTRARARE ULTRASAFE UMBRACULA UNABASHED UNABATING UNABRADED UNACTABLE UNADAPTED UNAIDABLE UNALARMED UNALLAYED UNAMASSED UNAMIABLE UNAPPAREL UNARRAYED UNASHAMED UNASSAYED UNAVERAGE UNAWARDED UNAWARELY UNBALANCE UNBANDAGE UNCAPABLE UNCINARIA UNDAMAGED UNDATABLE UNEATABLE UNFADABLE UNFAZABLE UNGALLANT UNIPLANAR UNITARIAN UNMAKABLE UNMANACLE UNMANAGED UNNAMABLE UNNATURAL UNPARTIAL UNPAYABLE UNRAVAGED UNSALABLE UNSALABLY UNSATABLE UNSATIATE UNSAYABLE UNTAMABLE UNTAMABLY UNTAXABLE UPDATABLE UPHEAVALS UPSADAISY UROLAGNIA URTICARIA USQUABAES VACUATING VACUATION VACUOLATE VAGARIOUS VAGINULAE VALLECULA VALUABLES VALUATING VALUATION VALUATORS VANADIUMS VANGUARDS VAPULATED VAPULATES VAULTAGES VAUNTAGES VAVASOURS VELATURAS VIBRACULA VOCABULAR VULCANIAN VULGARIAN WALKABOUT WARRAGULS YARMULKAS ZAIBATSUS ZARZUELAS