There are 692 nine-letter words containing A, E, I and 2T, https://www.bestwordlist.com/c/a/5/9letterwordswithaeitt.htm
ABATTISES ABSTINENT ACQUITTED ACQUITTER ACTIVATED ACTIVATES ACTUALITE
ADMITTEES ADMITTERS ADROITEST AESTHETIC AESTIVATE AFTERTIME AGISTMENT
AGITATIVE AIGRETTES ALBERTITE ALITERATE ALTIMETER ALTIMETRY ALTITUDES
ANGSTIEST ANISETTES ANORTHITE ANTIDOTED ANTIDOTES ANTIELITE ANTIQUATE
ANTISTATE ANTISTYLE ANTITHEFT ANTITHETS ANTITRADE ANTITYPES ANTIWHITE
APATHETIC APPETITES APTITUDES ARBITRATE ARCHITECT ARGENTITE ARISTOTLE
ARTERITIS ASTATIDES ASTATINES ASTERTING ASTRICTED ATACAMITE ATHEISTIC
ATHEMATIC ATHETESIS ATHETISED ATHETISES ATHETIZED ATHETIZES ATHETOSIC
ATHETOSIS ATHETOTIC ATHLETICS ATTAINDER ATTAINERS ATTAINTED ATTENDING
ATTENTION ATTENTIVE ATTESTING ATTICISED ATTICISES ATTICIZED ATTICIZES
ATTITUDES ATTRIBUTE ATTRISTED ATTRITIVE ATTRITTED ATTUITIVE AUNTLIEST
AUSTENITE AUSTERITY AUTEURIST AUTHENTIC AUTOCUTIE AUTOTELIC AUTOTIMER
AUTUNITES BABBITTED BATHOLITE BATHYLITE BATTELING BATTENING BATTERIES
BATTERING BATTILLED BATTINESS BEATITUDE BEPATTING BETATOPIC BETHANKIT
BIATHLETE BIDENTATE BIPARTITE BIRRETTAS BIRTHDATE BIRTHRATE BITEPLATE
BITSTREAM BITTACLES BLASTIEST BRATTICED BRATTICES BRATTIEST BUSTICATE
CAPITATED CAPITATES CAPTIVATE CARITATES CARNOTITE CARTELIST CASTIGATE
CATAMITES CATCHIEST CATECHIST CATHECTIC CATHEPTIC CATKINATE CATLINITE
CATTERIES CATTINESS CAVALETTI CAVITATED CAVITATES CERATITIS CERTAINTY
CHATTIEST CIGARETTE CLARTIEST COBALTITE COGITATED COGITATES CORTICATE
COTTAGIER CRAFTIEST CREPITANT CREPITATE CRISTATED CULTIVATE DAINTIEST
DATOLITES DEATHIEST DEFATTING DEFEATIST DENITRATE DENTALITY DENTATION
DERATTING DESTINATE DIATHETIC DIATOMITE DIATRETUM DICTATURE DIETITIAN
DIGESTANT DIGITATED DIOPTRATE DISATTIRE DISATTUNE DISTASTED DISTASTES
DISTRAITE DITTANDER DITTANIES DRAFTIEST DUBITATED DUBITATES EARTHIEST
ECSTATICS ELATERITE ELUTRIATE EMANATIST EMITTANCE EMPATHIST ENSTATITE
ENTERTAIN EPISTATIC ESTAMINET ESTIMATED ESTIMATES ESTIMATOR ESTIVATED
ESTIVATES ESTIVATOR ETATISMES ETATISTES ETIOLATED ETIOLATES EUTAXITES
EUTAXITIC EVITATING EVITATION EXCITANTS EXPATIATE EXTIRPATE EXTRADITE
EXTRALITY EXTRICATE FACETTING FACTITIVE FAINTIEST FATIGATED FATIGATES
FATISCENT FATTENING FATTINESS FATUITIES FAULTIEST FEATLIEST FERTIGATE
FESTINATE FETATIONS FETERITAS FILTRATED FILTRATES FISTULATE FLAGITATE
FLOATIEST FOETATION FUSTIGATE GAZETTING GEOSTATIC GEOTACTIC GESTATING
GESTATION GESTATIVE GITTARONE GNATHITES GNATTIEST GONIATITE GRANITITE
GRATINATE GRATITUDE GRAVITATE GUSTATIVE HABITUATE HAEMATITE HATTERIAS
HATTERING HEARTIEST HEATHIEST HELIOSTAT HEMATITES HEMATITIC HEPATITES
HEPATITIS HESITATED HESITATER HESITATES HESITATOR HETAERIST HETAIRIST
HORTATIVE IMITATIVE IMPACTITE IMPATIENT IMPETRATE INFATUATE INFECTANT
INFESTANT INITIATED INITIATES INJECTANT INPATIENT INSATIATE INSATIETY
INSTANTER INSTIGATE INTEGRANT INTEGRATE INTENDANT INTENSATE INTERACTS
INTERMATS INTESTACY INTESTATE INTIMATED INTIMATER INTIMATES INTONATED
INTONATES INTRANETS INTREATED INTRICATE INTUBATED INTUBATES INUSITATE
IRRITATED IRRITATES ITERATING ITERATION ITERATIVE ITINERANT ITINERATE
JAUNTIEST KARATEIST KERATITIS KERATOTIC KITTIWAKE KNITTABLE LATERITES
LATERITIC LATITUDES LETHALITY LEVITATED LEVITATES LEVITATOR LIFTGATES
LITERATES LITERATIM LITERATOR LITERATUS LITIGATED LITIGATES LITTERBAG
MAGNETIST MAGNETITE MARTINETS MASTICATE MATERNITY MATTERIER MATTERING
MATTIFIED MATTIFIES MEDITATED MEDITATES MEDITATOR MENTALIST MENTALITY
MENTATION METABATIC METALISTS METALLIST METATARSI METRICATE MICTURATE
MIGMATITE MILITATED MILITATES MINISTATE MISSTATED MISSTATES MISTREATS
MITIGATED MITIGATES MOTIVATED MOTIVATES MUSSITATE MUTILATED MUTILATES
NATROLITE NATTERIER NATTERING NATTINESS NEGOTIANT NEGOTIATE NICTITATE
NITRATINE NOVITIATE OBSTINATE OMITTANCE OPTATIVES OPTIMATES ORIENTATE
OSCITATED OSCITATES OSTIOLATE OUTEATING OUTWAITED PAILLETTE PAINTIEST
PALAFITTE PALMITATE PALPITATE PALTRIEST PANETTONI PANTHEIST PARTITIVE
PASTELIST PATCHIEST PATENTING PATERNITY PATHETICS PATIENTED PATIENTER
PATIENTLY PATINATED PATINATES PATOOTIES PATRIATED PATRIATES PATTENING
PATTERING PAUPIETTE PECTINATE PEGMATITE PELTATION PETAURIST PETILLANT
PETIOLATE PETTICOAT PIANETTES PITTANCES PLAINTEXT PLATITUDE PORTATILE
PORTATIVE POTENTIAL PRELATIST PRIVATEST QUAINTEST QUARTETTI QUARTZITE
QUITTANCE QUOTATIVE RATTAILED RATTENING RATTERIES RATTINESS RATTLIEST
RATTLINES RAVIGOTTE REASTIEST REATTAINS REDICTATE REINSTATE REITERANT
REITERATE REMITTALS REPTATION RESISTANT RESITUATE RESTATING RESTATION
RESTRAINT RETALIATE RETASTING RETIRANTS RETRAICTS RETRAITES RETRAITTS
RETRATING RUSTICATE RUTILATED SAGITTATE SANITATED SANITATES SATELLITE
SATIETIES SATINETTA SATINETTE SATINIEST SCANTIEST SCARPETTI SCATTIEST
SCAWTITES SEMIMATTE SENTENTIA SEPTATION SESTERTIA SITTELLAS SLANTIEST
SMALTITES SPAGHETTI SQUATTIER STABILATE STAGGIEST STAIRSTEP STALKIEST
STAMINATE STANNITES STARRIEST STARTLIER STATELIER STATELILY STATESIDE
STATEWIDE STATIONED STATIONER STATUSIER STEADIEST STEAMIEST STEATITES
STEATITIC STEATOSIS STEMMATIC STERILANT STIMULATE STIPITATE STIPULATE
STORIATED STRAITENS STRAITEST STRATEGIC STRAWIEST STRIATURE SUSCITATE
SWARTIEST SWATHIEST SWATTIEST SWEATIEST SWEATSUIT TABBINETS TABLETING
TACHISTES TACHYLITE TACITNESS TACKETIER TACONITES TACTILELY TAFFETIER
TAILGATED TAILGATER TAILGATES TAILWATER TAINTLESS TAINTURES TALCKIEST
TALKATIVE TALKTIMES TALLIATED TALLIATES TALLITHES TANAISTES TANGLIEST
TANTALISE TANTALITE TANTALIZE TANTIVIES TANTONIES TANZANITE TAPSTRIES
TARGETING TARTARISE TARTARIZE TARTINESS TASIMETER TASIMETRY TASTEVINS
TASTINESS TATTERIER TATTERING TATTINESS TAUTENING TAWDRIEST TAXIMETER
TEALIGHTS TEARSTAIN TEARSTRIP TECTORIAL TELEMATIC TELOTAXIS TENANTING
TENTATION TENTATIVE TENTORIAL TERATISMS TERMINATE TERMITARY TESSITURA
TESTACIES TESTATION TESTATRIX TETANICAL TETANISED TETANISES TETANIZED
TETANIZES TETRACIDS TETRADITE TEXTORIAL THATCHIER THEATRICS THEMATICS
THEMATISE THEMATIZE THERALITE THERAPIST THIONATES THIOTEPAS THREATING
THROATIER TICTACKED TIDEWATER TIDIVATED TIDIVATES TIMESTAMP TIMETABLE
TINGUAITE TINPLATED TINPLATES TIPSTAVES TITANATES TITANISES TITANITES
TITILLATE TITIVATED TITIVATES TITTIVATE TITTLEBAT TITUBATED TITUBATES
TOASTIEST TOMATOIER TONALITES TORBANITE TOTALISED TOTALISER TOTALISES
TOTALIZED TOTALIZER TOTALIZES TOTAQUINE TRADITIVE TRAITRESS TRAMPIEST
TRANCIEST TRANSIENT TRANSITED TRAPEZIST TRAPPIEST TRASHIEST TRASHTRIE
TRATTORIE TRAVERTIN TREATINGS TREATISES TREMATOID TREPIDANT TRIACTINE
TRIBULATE TRIBUNATE TRIDENTAL TRIFECTAS TRIJUGATE TRILOBATE TRIPTANES
TRIQUETRA TRISTEZAS TRITANOPE TRITIATED TRITIATES TRITICALE TRITURATE
TRIVALENT TUNICATED TUNICATES TURBINATE TWANGIEST TWEAKIEST TWISTABLE
UINTAHITE UINTAITES ULTIMATED ULTIMATES UNATTIRED UNSATIATE UNTAINTED
URTICATED URTICATES VAPORETTI VASTITIES VASTITUDE VAULTIEST VAUNTIEST
VAWNTIEST VEDUTISTA VENTIFACT VENTILATE VERITATES VOLITATED VOLITATES
WAISTBELT WATERIEST WHEATIEST WHITEBAIT WHITECOAT WHITETAIL WHITTAWER
WRATHIEST WRITATIVE YATTERING YEASTIEST YTTERBIAS ZARATITES