There are 587 eleven-letter words containing A, B, C and T, https://www.bestwordlist.com/c/a/4/11letterwordswithabct.htm ABACTINALLY ABDICATIONS ABIOGENETIC ABIOTICALLY ABIOTROPHIC ABJUNCTIONS ABLACTATION ABORTICIDES ABRANCHIATE ABREACTIONS ABSORPTANCE ABSTINENCES ABSTRACTERS ABSTRACTEST ABSTRACTING ABSTRACTION ABSTRACTIVE ABSTRACTORS ABSTRICTING ABSTRICTION ACCOMPTABLE ACCOUNTABLE ACCOUNTABLY ACCUBATIONS ACETABULUMS ACROBATISMS AEROBICISTS ALEMBICATED ALLOCATABLE AMBOCEPTORS AMICABILITY AMOEBOCYTES AMPHIBIOTIC ANTECHAMBER ANTIBACCHII ANTIBIOTICS ANTIBOYCOTT ANTIJACOBIN ANTITOBACCO ARBORESCENT ARCUBALISTS ARTICULABLE ASTRAPHOBIC ASTROPHOBIC ATTRACTABLE AZOTOBACTER BACITRACINS BACKBITINGS BACKCASTING BACKCHATTED BACKCOUNTRY BACKDRAUGHT BACKFITTING BACKLIGHTED BACKLISTING BACKSCATTER BACKSCRATCH BACKSETTING BACKSTABBED BACKSTABBER BACKSTALLED BACKSTAMPED BACKSTOPPED BACKSTORIES BACKSTREETS BACKSTRETCH BACKSTROKED BACKSTROKER BACKSTROKES BACKTRACKED BACTERAEMIA BACTERAEMIC BACTEREMIAS BACTERIALLY BACTERICIDE BACTERIOCIN BACTERIOIDS BACTERIOSES BACTERIOSIS BACTERISING BACTERIURIA BACTERIZING BACTERURIAS BAITCASTERS BALCONETTES BALLICATTER BANDICOOTED BAROCEPTORS BARONETCIES BARONETICAL BARRACOUTAS BARYCENTRES BARYCENTRIC BATHOCHROME BATHOLITHIC BATHOMETRIC BATHYLITHIC BATHYMETRIC BATHYSCAPES BATHYSCAPHE BATHYSCAPHS BATOLOGICAL BATRACHIANS BATTLEPIECE BATTLESPACE BEACHFRONTS BEAUTICIANS BECARPETING BENEFACTING BENEFACTION BENEFACTORS BENEFACTORY BENEFICIATE BENEPLACITO BESCATTERED BETACYANINS BETHWACKING BETULACEOUS BIBLIOTHECA BICARBONATE BICENTENARY BICHROMATED BICHROMATES BICONCAVITY BICORPORATE BICUSPIDATE BIDIALECTAL BIFURCATING BIFURCATION BILOCATIONS BIMETALLICS BINUCLEATED BIOACTIVITY BIOCATALYST BIOCLIMATIC BIOMETRICAL BIOPLASTICS BIOREACTORS BIQUADRATIC BIRDWATCHED BIRDWATCHER BIRDWATCHES BIRTHPLACES BISECTIONAL BISOCIATION BISOCIATIVE BLACKHEARTS BLACKLISTED BLACKLISTER BLACKSHIRTS BLACKSMITHS BLACKSTRAPS BLACKTHORNS BLACKTOPPED BLACKWATERS BLASTEMATIC BLASTOCHYLE BLASTOCOELE BLASTOCOELS BLASTOCYSTS BLASTODISCS BLASTOGENIC BLASTOMERIC BLASTOPORIC BLEACHERITE BLEPHARITIC BLUEJACKETS BOTANICALLY BOTANOMANCY BRACHIATING BRACHIATION BRACHIATORS BRACHYODONT BRACKETINGS BRACTEOLATE BRADYPEPTIC BRATPACKERS BRATTICINGS BREADSTICKS BRECCIATING BRECCIATION BRICKEARTHS BROADCASTED BROADCASTER BROADCLOTHS BROCATELLES BRUSCHETTAS BUCCINATORS BUCCINATORY BUCKETLOADS BUREAUCRATS BURSICULATE BUSTICATING BUTTERCREAM BUTYRACEOUS CABBAGETOWN CABBALISTIC CABINETRIES CABINETWORK CABLECASTED CALIBRATERS CALIBRATING CALIBRATION CALIBRATORS CAMBISTRIES CANTERBURYS CARBONATING CARBONATION CARBONATITE CARBONETTES CARBONYLATE CARBOXYLATE CARBURATING CARBURATION CARBURETERS CARBURETING CARBURETION CARBURETORS CARBURETTED CARBURETTER CARBURETTOR CASTABILITY CATABOLISED CATABOLISES CATABOLISMS CATABOLITES CATABOLIZED CATABOLIZES CAUSABILITY CELEBRATING CELEBRATION CELEBRATIVE CELEBRATORS CELEBRATORY CELEBUTANTE CENOBITICAL CENTERBOARD CENTREBOARD CENTROBARIC CEREBRALIST CEREBRATING CEREBRATION CERTIFIABLE CERTIFIABLY CHALYBEATES CHAMBERPOTS CHASTISABLE CLOFIBRATES CLUBABILITY CLUBMASTERS CNIDOBLASTS COCKLEBOATS COHABITANTS COILABILITY COLLABORATE COLLECTABLE COMBATIVELY COMBINATION COMBINATIVE COMBINATORY COMFORTABLE COMFORTABLY COMMITTABLE COMPACTIBLE COMPATIBLES COMPLETABLE COMPOSTABLE CONCUBITANT CONFABULATE CONGLOBATED CONGLOBATES CONNECTABLE CONSORTABLE CONSTRUABLE CONSULTABLE CONTACTABLE CONTAINABLE CONTESTABLE CONTESTABLY CONTINUABLE CONTRABANDS CONTRABASSI CONTRABASSO CONTRIVABLE CONTUBERNAL CONURBATION CONVICTABLE CORBICULATE CORRECTABLE CORROBORANT CORROBORATE CORYBANTISM COUNTERBASE CRIBRATIONS CULPABILITY CYBERATTACK CYBERNATING CYBERNATION DEBARCATION DEBAUCHMENT DECARBONATE DECEREBRATE DEFLECTABLE DELECTABLES DISTURBANCE DITHYRAMBIC DUBITANCIES ECBLASTESES ECBLASTESIS ECTOBLASTIC EDUCABILITY ELUCUBRATED ELUCUBRATES EMBARCATION EMBRACEMENT EMBROCATING EMBROCATION ENDOBLASTIC ENTOBLASTIC ESCHEATABLE EUBACTERIAL EUBACTERIUM EXACERBATED EXACERBATES EXCOGITABLE EXECUTABLES EXORBITANCE EXORBITANCY EXTRACTABLE EXTRACTIBLE FABRICATING FABRICATION FABRICATIVE FABRICATORS FRACTURABLE GLABRESCENT HABITAUNCES HACKBUTEERS HACKBUTTERS HALOBIONTIC HOLOBLASTIC HOMOBLASTIC HUDIBRASTIC HYPOBLASTIC ICEBOATINGS IDIOBLASTIC IMBRICATELY IMBRICATING IMBRICATION IMBROCCATAS INCOGITABLE INCUBATIONS INDICATABLE INELUCTABLE INELUCTABLY INEXCITABLE INFLECTABLE INFLICTABLE INHABITANCE INHABITANCY INJECTABLES INSCRUTABLE INSCRUTABLY INSPECTABLE INTERBRANCH INTOXICABLE INTRACTABLE INTRACTABLY JABOTICABAS JACKBOOTING JACKRABBITS JUSTICIABLE KABBALISTIC KNOCKABOUTS LABEFACTION LABYRINTHIC LACTALBUMIN LEATHERBACK LEUCOBLASTS LUBRICATING LUBRICATION LUBRICATIVE LUBRICATORS LUCUBRATING LUCUBRATION LUCUBRATORS MACROBIOTAS MACROBIOTES MACROBIOTIC MATCHBOARDS MEROBLASTIC MESOBLASTIC METABOLOMIC MICROBIOTAS MOBCASTINGS MULTIBRANCH MULTICARBON NEGLECTABLE NONABSTRACT NONDIABETIC NONTOBACCOS NOTICEBOARD NYCTOPHOBIA OBFUSCATING OBFUSCATION OBFUSCATORY OBJECTIVATE OBSCURANTIC OBSCURATION OBSECRATING OBSECRATION OBSTETRICAL OBSTINACIES OBTRUNCATED OBTRUNCATES ORBICULATED OUTBALANCED OUTBALANCES PACKABILITY PARABEMATIC PARABLASTIC PARABLEPTIC PATCHBOARDS PECCABILITY PERTURBANCE PHOTOBATHIC PICKETBOATS PLACABILITY PRACTICABLE PRACTICABLY PREDIABETIC PREDICTABLE PREDICTABLY PROBLEMATIC PROJECTABLE PROTECTABLE PUBLICATION PUNCTURABLE QUARTERBACK RABBINISTIC RACKETBALLS RACQUETBALL REBROADCAST RECALIBRATE RECOMBINANT RECRUITABLE RECTIFIABLE REFRACTABLE RELOCATABLE RELUBRICATE RESPECTABLE RESPECTABLY RETOUCHABLE RETRACEABLE RETRACTABLE RETRACTIBLE ROBOTICALLY RUBEFACIENT RUBEFACTION RUBRICATING RUBRICATION RUBRICATORS RUMBUSTICAL SABBATICALS SABERMETRIC SABRETACHES SALTIMBANCO SALTIMBOCCA SAPROBIOTIC SCALABILITY SCAMBAITING SCARABAEIST SCATTERABLE SCRABBLIEST SCRATCHBACK SOCIABILITY SONOFABITCH STAUNCHABLE STENOBATHIC STEREOBATIC STICKLEBACK STICKYBEAKS STRETCHABLE SUBACETATES SUBALLOCATE SUBARTICLES SUBCABINETS SUBCATEGORY SUBCAVITIES SUBCHANTERS SUBCHAPTERS SUBCHARTERS SUBCOMPACTS SUBCONTRACT SUBCONTRARY SUBCORTICAL SUBCRITICAL SUBCULTURAL SUBCURATIVE SUBDIALECTS SUBINDICATE SUBJACENTLY SUBJECTABLE SUBLITERACY SUBMATRICES SUBSCHEMATA SUBSTRACTED SUBSTRACTOR SUBTACKSMAN SUBTACKSMEN SUBTRACTERS SUBTRACTING SUBTRACTION SUBTRACTIVE SUBTRACTORS SUBTROPICAL SUBVERTICAL SUSPECTABLE SWATCHBOOKS SWITCHBACKS SWITCHBLADE SWITCHBOARD SYBARITICAL SYLLABICATE SYLLABICITY SYMBIOTICAL TABEFACTION TABERNACLED TABERNACLES TABESCENCES TABLECLOTHS TAPHEPHOBIC TCHOUKBALLS TECTIBRANCH TETRABRACHS THEOPHOBIAC THERMOBARIC THIOBACILLI THUMBTACKED TIBOUCHINAS TIMBERJACKS TITUBANCIES TOBACCOLESS TOBACCONIST TOCOPHOBIAS TORCHBEARER TOXIPHOBIAC TRABECULATE TRACKERBALL TRAFFICABLE TRANSCRIBED TRANSCRIBER TRANSCRIBES TRANSPHOBIC TRIBALISTIC TRIBRACHIAL TRIBUNICIAL TRIBUNICIAN TRISYLLABIC TUBERACEOUS TUBERCULARS TUBERCULATE TUBERCULOMA TURTLEBACKS ULTRABASICS UMBILICATED UMBRACULATE UNBRACKETED UNCATCHABLE UNCOMATABLE UNCOMBATIVE UNCOUNTABLE UNELECTABLE UNEXCITABLE UNMATCHABLE UNMATCHABLY UNTEACHABLE UNTOUCHABLE UNTRACEABLE UNTRACTABLE UNWATCHABLE USUCAPTIBLE VERBALISTIC VOCABULISTS WEBCASTINGS WEBCHATTING ZALCITABINE