There are 716 seven-letter words containing A and 2T, https://www.bestwordlist.com/c/a/3/7letterwordswithatt.htm
ABATTIS ABETTAL ABETTED ABETTER ABETTOR ABUTTAL ABUTTED ABUTTER
ABWATTS ACETATE ACTANTS ACTUATE ACUTEST AETATIS AFTMOST AGITATE
AGITATO AILETTE ALTOIST AMBITTY ANATTAS ANATTOS ANNATTA ANNATTO
ANTIENT ANTIFAT ANTIPOT ANTITAX APATITE APTOTES APTOTIC ARETTED
ARIETTA ARIETTE ARNATTO ARNOTTO ARTIEST ARTISTE ARTISTS ASTARTS
ASTATIC ASTATKI ASTERTS ASTRICT ASTUTER ATAATAS ATACTIC ATAVIST
ATHEIST ATHIRST ATHLETA ATHLETE ATHWART ATLATLS ATOMIST ATRETIC
ATTABOY ATTACHE ATTACKS ATTAINS ATTAINT ATTASKS ATTASKT ATTEMPT
ATTENDS ATTENTS ATTESTS ATTIRED ATTIRES ATTONCE ATTONED ATTONES
ATTORNS ATTRACT ATTRAPS ATTRIST ATTRITE ATTRITS ATTUENT ATTUITE
ATTUNED ATTUNES AUTISTS AUTOMAT AUTOPUT AVIETTE BABBITT BAPTIST
BASSETT BATATAS BATHMAT BATHTUB BATISTE BATLETS BATSHIT BATTEAU
BATTELS BATTENS BATTERO BATTERS BATTERY BATTIER BATTIES BATTIKS
BATTILL BATTILY BATTING BATTLED BATTLER BATTLES BATTUES BATTUTA
BATTUTO BERETTA BIRETTA BISTATE BITRATE BLATANT BLATEST BLATTED
BLATTER BOTTEGA BRATTLE BUTTALS CALOTTE CANTATA CANTATE CANTEST
CANTLET CASETTE CATASTA CATBOAT CATGUTS CATHECT CATMINT CATSUIT
CATTABU CATTAIL CATTALO CATTERY CATTIER CATTIES CATTILY CATTING
CATTISH CAVETTI CAVETTO CHATBOT CHATTAS CHATTED CHATTEL CHATTER
CHATTIS CITATOR CITRATE CLATTED CLATTER CODETTA CONTACT CONTRAT
COSTATE COTTAGE COTTARS CURTATE CUTTAGE DAFTEST DENTATE DETRACT
DICTATE DIKTATS DISTANT DITTANY DITTAYS DOPATTA DOTANTS DRATTED
DUPATTA ECTATIC ENTRANT ENTREAT EPATANT ESTATED ESTATES ESTREAT
ETATISM ETATIST ETCHANT EVITATE EXTATIC EXTRACT EXTRAIT EXTREAT
FAGOTTI FAGOTTO FANTAST FASTEST FATTENS FATTEST FATTIER FATTIES
FATTILY FATTING FATTISH FATTISM FATTIST FATUITY FEATEST FLATLET
FLATTED FLATTEN FLATTER FLATTIE FLATTOP FLOTANT GALETTE GANTLET
GAROTTE GAVOTTE GAZETTE GESTALT GESTANT GESTATE GLOTTAL GUTTATE
GYTTJAS HABITAT HASTATE HATCHET HATTERS HATTING HATTOCK HAUTEST
IMITANT IMITATE INSTANT INSTATE INTRANT INTREAT IRATEST ITERANT
ITERATE LACTATE LADETTE LATCHET LATENTS LATESTS LATITAT LATRANT
LATTENS LATTERS LATTICE LATTINS LAYETTE LITHATE MANTLET MARTEXT
MARTLET MATATAS MATATUS MATCHET MATELOT MATIEST MATTERS MATTERY
MATTIES MATTIFY MATTING MATTINS MATTOCK MATTOID MATZOTH METATAG
METATES METCAST MONTANT MOZETTA MUTANTS MUTATED MUTATES MUTATOR
NATTERS NATTERY NATTIER NATTILY NAVETTE NEATEST NICTATE NITRATE
NOTATED NOTATES NOTATOR NOTITIA NUTATED NUTATES NUTMEAT OATIEST
OCTANTS OPTANTS OSTIATE OTTAVAS OTTOMAN OUTACTS OUTCAST OUTDATE
OUTEATS OUTFAST OUTGATE OUTLAST OUTPART OUTRATE OUTSTAY OUTTAKE
OUTTALK OUTTASK OUTWAIT PALETOT PALETTE PARTITA PARTITE PARTLET
PATENTS PATIENT PATOOTS PATRIOT PATTENS PATTERN PATTERS PATTEST
PATTIES PATTING PATTLES PECTATE PELTAST PELTATE PENTACT PHATTER
PITAPAT PITUITA PLATTED PLATTER PORTATE POSTTAX POTTAGE PRATTED
PRATTLE QUARTET QUATTED QUITTAL RABATTE RACKETT RATATAT RATBITE
RATCHET RATHEST RATITES RATTAIL RATTANS RATTEEN RATTENS RATTERS
RATTERY RATTIER RATTILY RATTING RATTISH RATTLED RATTLER RATTLES
RATTLIN RATTONS RATTOON RATTRAP REGATTA REPTANT RESTART RESTATE
RETASTE RETOTAL RETRACT RETRAIT RETRATE RETREAT RICOTTA ROTATED
ROTATES ROTATOR ROTTANS SAFTEST SAGITTA SALTANT SALTATE SALTATO
SALTCAT SALTEST SATIATE SATIETY SATINET SCATTED SCATTER SCEATTS
SCUTATE SEPTATE SEXTANT SHATTER SHITTAH SHMATTE SITFAST SITTARS
SITUATE SLATTED SLATTER SMATTER SPATTED SPATTEE SPATTER SQUATTY
STACKET STACTES STAITHE STAITHS STALEST STARETS STARETZ STARLET
STARLIT STARTED STARTER STARTLE STARTLY STARTSY STARTUP STATANT
STATELY STATERS STATICE STATICS STATING STATINS STATION STATISM
STATIST STATIVE STATORS STATTOS STATUAS STATUED STATUES STATURE
STATUSY STATUTE STEALTH STOMATA STOMATE STRAINT STRAITS STRATAL
STRATAS STRATHS STRATUM STRATUS STRETTA STRIATA STRIATE STYLATE
SWATTED SWATTER TABARET TABETIC TABINET TABLETS TABORET TABRETS
TACHIST TACITLY TACKETS TACKETY TACTFUL TACTICS TACTILE TACTION
TACTISM TACTUAL TAENITE TAFFETA TAFFETY TAGETES TAGGANT TAGMATA
TAINTED TAIVERT TAKEOUT TAKIEST TALANTS TALAUNT TALAYOT TALBOTS
TALENTS TALIPAT TALIPOT TALLATS TALLENT TALLEST TALLETS TALLITH
TALLITS TALLOTS TANGENT TANISTS TANNATE TANNEST TANTARA TANTIES
TANTIVY TANTONY TANTRAS TANTRIC TANTRUM TAPETAL TAPETED TAPETIS
TAPETUM TAPISTS TAPPETS TAPROOT TAPSTER TAPSTRY TARGETS TARTANA
TARTANE TARTANS TARTARE TARTARS TARTEST TARTIER TARTILY TARTINE
TARTING TARTISH TARTLET TARTUFE TARTUFI TARTUFO TASLETS TASSETS
TASTERS TASTIER TASTILY TASTING TATAMIS TATHATA TATHING TATLERS
TATOUAY TATSOIS TATTERS TATTERY TATTIER TATTIES TATTILY TATTING
TATTLED TATTLER TATTLES TATTOOS TATTOWS TATUING TAUNTED TAUNTER
TAUPATA TAUTAUG TAUTENS TAUTEST TAUTING TAUTOGS TAWIEST TAWTIER
TAWTING TAXITES TAXITIC TEACART TEAPOTS TEATIME TENANTS TENTAGE
TERNATE TERTIAL TERTIAN TERTIAS TESTACY TESTATA TESTATE TETANAL
TETANIC TETANUS TETRACT TETRADS TEUCHAT TEWARTS TEXTUAL THANKIT
THATCHT THATCHY THEATER THEATRE THECATE THEMATA THEREAT THREATS
THROATS THROATY THWAITE THWARTS TICTACS TIETACK TIETACS TINTACK
TIPCART TIPCATS TITANIA TITANIC TITANIS TITIANS TITLARK TITRANT
TITRATE TITULAR TOADLET TOASTED TOASTER TOASTIE TOCCATA TOCCATE
TOGATED TOLUATE TOMCATS TOMENTA TOOARTS TOPCOAT TOPMAST TOSTADA
TOSTADO TOTABLE TOTALED TOTALLY TOTANUS TOTARAS TOWBOAT TOWPATH
TRACTED TRACTOR TRACTUS TRAIKIT TRAITOR TRAJECT TRAMPET TRANECT
TRANSIT TRANTED TRANTER TRAYBIT TREATED TREATER TRENTAL TRIACTS
TRIATIC TRIMTAB TRIPART TRIPTAN TRITOMA TROATED TRUANTS TRYMATA
TSANTSA TSARIST TSATSKE TUATARA TUATERA TUATUAS TUBAIST TUBFAST
TUGBOAT TURBANT TURISTA TUTANIA TUTELAR TUTENAG TUTSANS TWAITES
TWATTED TWATTLE TYRANTS TZARIST UNSTATE UPSTART UPSTATE VASTEST
VASTITY VATTERS VATTING VETTURA VITIATE VITTATE WADSETT WATCHET
WATTAGE WATTAPE WATTEST WATTLED WATTLES WHATNOT WHATSIT WHATTEN
WHITTAW WITGATS YATTERS YTTRIAS