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