There are 652 twelve-letter words containing A, B, C and E, https://www.bestwordlist.com/c/a/4/12letterwordswithabce.htm
ABECEDARIANS ABHORRENCIES ABJECTNESSES ABSCONDENCES ABSORBANCIES
ABSORBENCIES ABSORPTANCES ABSTINENCIES ABSTRACTABLE ABSTRACTEDLY
ABSTRACTIVES ABSTRACTNESS ACCLIMATABLE ACCOMMODABLE ACCREDITABLE
ACCUMBENCIES ACTABILITIES AEROBICISING AEROBICIZING ALEMBICATION
ALPHABETICAL AMBIVALENCES AMBULANCEMAN AMBULANCEMEN AMICABLENESS
AMINOBENZOIC AMPHISBAENIC ANAEROBIOTIC ANALPHABETIC ANTECHAMBERS
ANTIDIABETIC APPROACHABLE ARACHNOPHOBE ARBORESCENCE ARCHEOBOTANY
ASSEMBLANCES ASSEMBLAUNCE AZOTOBACTERS BACCALAUREAN BACHELORDOMS
BACHELORETTE BACHELORHOOD BACHELORISMS BACHELORSHIP BACILLAEMIAS
BACILLICIDES BACKBENCHERS BACKBLOCKERS BACKBONELESS BACKBREAKERS
BACKBREAKING BACKCHANNELS BACKCHECKING BACKCOURTMEN BACKGAMMONED
BACKGROUNDED BACKGROUNDER BACKHANDEDLY BACKPEDALING BACKPEDALLED
BACKSCATTERS BACKSHEESHED BACKSHEESHES BACKSLAPPERS BACKSPEERING
BACKSPEIRING BACKSPLASHES BACKSTABBERS BACKSTITCHED BACKSTITCHES
BACKSTROKERS BACKSWIMMERS BACKSWORDMEN BACKWARDNESS BACKWOODSIER
BACKWOODSMEN BACTERAEMIAS BACTERICIDAL BACTERICIDES BACTERIOCIDE
BACTERIOCINS BACTERIOLOGY BACTERIOSTAT BACTERIURIAS BALLCARRIERS
BALLETICALLY BALLICATTERS BANCASSURERS BANDERSNATCH BANKRUPTCIES
BAREBACKINGS BAROMETRICAL BARORECEPTOR BATHETICALLY BATHOCHROMES
BATHYPELAGIC BATHYSCAPHES BATTLEPIECES BATTLESPACES BEACHCOMBERS
BEACHCOMBING BEATIFICALLY BECLAMOURING BELLYACHINGS BENCHMARKING
BENCHWARMERS BENEFACTIONS BENEFACTRESS BENEFICIALLY BENEFICIATED
BENEFICIATES BENIGNANCIES BESCATTERING BESPECTACLED BETACAROTENE
BIAURICULATE BIBLIOTHECAE BIBLIOTHECAL BIBLIOTHECAS BICAMERALISM
BICAMERALIST BICARBONATES BICARPELLARY BICENTENNIAL BICOLLATERAL
BICUSPIDATES BIOCATALYSES BIOCHEMICALS BIOFEEDBACKS BIOGENETICAL
BIOIDENTICAL BIOMAGNETICS BIOMECHANICS BIOMETRICIAN BIOMOLECULAR
BIOPRIVACIES BIOTECHNICAL BIRDWATCHERS BLACKBERRIED BLACKBERRIES
BLACKBIRDERS BLACKGUARDED BLACKHANDERS BLACKLEADING BLACKLEGGING
BLACKLISTERS BLACKMAILERS BLADDERWRACK BLASTOCHYLES BLASTOCOELES
BLASTOCOELIC BLASTODERMIC BLEACHERITES BLUEJACKINGS BOARDERCROSS
BODYSNATCHER BOMBACACEOUS BONNYCLABBER BOROSILICATE BRACHYCEPHAL
BRACHYCEROUS BRACHYLOGIES BRACKISHNESS BRADYPEPTICS BREADCRUMBED
BREAKDANCERS BREAKDANCING BRECCIATIONS BREECHLOADER BRILLIANCIES
BROADCASTERS BUCCANEERING BUCCANEERISH BUCCANIERING BUNCHGRASSES
BUPIVACAINES BUREAUCRATIC BURSERACEOUS BUSHWHACKERS BUTTERCREAMS
CABBAGETOWNS CABBAGEWORMS CABINETMAKER CABINETWORKS CABLECASTING
CABLEVISIONS CACTOBLASTES CALLIBOGUSES CANCERPHOBIA CANDELABRUMS
CANNIBALISED CANNIBALISES CANNIBALIZED CANNIBALIZES CANNONBALLED
CANTERBURIES CAPABILITIES CARBAMIDINES CARBIMAZOLES CARBOHYDRASE
CARBOHYDRATE CARBONACEOUS CARBONATITES CARBONYLATED CARBONYLATES
CARBOXYLASES CARBOXYLATED CARBOXYLATES CARBURETIONS CARBURETTERS
CARBURETTING CARBURETTORS CARBYLAMINES CARDBOARDIER CARPETBAGGED
CARPETBAGGER CARRIAGEABLE CELEBRATIONS CELEBREALITY CELEBUTANTES
CELIBATARIAN CENTERBOARDS CENTREBOARDS CEREBRALISMS CEREBRALISTS
CEREBRATIONS CEREBROTONIA CHAMBERHANDS CHAMBERLAINS CHAMBERMAIDS
CHARBROILERS CHATTERBOXES CHECKERBOARD CHEESEBOARDS CHEQUERBOARD
CHERUBICALLY CHILDBEARING CHIMNEYBOARD CHINABERRIES CHORIAMBUSES
CIRCULATABLE CLAPPERBOARD CLASSIFIABLE CLAVICEMBALO CLEANABILITY
CLEAVABILITY COACHBUILDER COCKABULLIES CODEBREAKERS COENOBITICAL
COLLABORATED COLLABORATES COLLECTABLES COLLEMBOLANS COMMEMORABLE
COMMISERABLE COMMUNICABLE COMPOUNDABLE CONCELEBRANT CONCELEBRATE
CONCUBINAGES CONFABULATED CONFABULATES CONFOUNDABLE CONGLOBULATE
CONSCIONABLE CONSIDERABLE CONSIDERABLY CONTABESCENT CONTAMINABLE
CONTEMPLABLE CONTRABASSES CONTRACTABLE CONTRACTIBLE CONTRASTABLE
CONTROLLABLE CONTUBERNYAL CORALBERRIES CORNBRANDIES CORRELATABLE
CORROBORABLE CORROBORATED CORROBORATES COUNSELLABLE COUNTERBASES
COUNTERBLAST COUNTERBRACE CRABBINESSES CRACKBERRIES CRACKBRAINED
CRAKEBERRIES CRISTOBALITE CRITICISABLE CRITICIZABLE CROSSBEARERS
CULPABLENESS CULTIVATABLE CURABILITIES CURVEBALLING CUSTOMISABLE
CUSTOMIZABLE CUTABILITIES CYBERATHLETE CYBERATTACKS CYBERNATIONS
CYBERNETICAL CYBERPHOBIAS CYBERSTALKER CYTOMEMBRANE DEBARCATIONS
DEBAUCHERIES DEBAUCHMENTS DECARBONATED DECARBONATES DECARBONATOR
DECARBONISED DECARBONISER DECARBONISES DECARBONIZED DECARBONIZER
DECARBONIZES DECARBURISED DECARBURISES DECARBURIZED DECARBURIZES
DECASYLLABIC DECASYLLABLE DECEREBRATED DECEREBRATES DECIDABILITY
DECIPHERABLE DECOMPOSABLE DESCRAMBLERS DESCRAMBLING DIABETOGENIC
DIBASICITIES DIBRANCHIATE DISCOUNTABLE DISCOVERABLE DISPLACEABLE
DISSEMBLANCE DISTRACTABLE DISTRACTIBLE DISTURBANCES DOCUMENTABLE
DOMESTICABLE EBRACTEOLATE ECCALEOBIONS ELASMOBRANCH ELECTABILITY
ELUCUBRATING ELUCUBRATION EMBARCADEROS EMBARCATIONS EMBLEMATICAL
EMBRACEMENTS EMBRANCHMENT EMBROCATIONS ENCUMBRANCER ENCUMBRANCES
EQUIBALANCED EQUIBALANCES EXACERBATING EXACERBATION EXCHANGEABLE
EXCHANGEABLY EXCITABILITY EXORBITANCES EXUBERANCIES FEBRIFACIENT
FLAMBOYANCES FORBEARANCES FORBIDDANCES FORECASTABLE FORECLOSABLE
FRANCOPHOBES GEOBOTANICAL GREENBACKERS GREENBACKISM GUBERNACULAR
GUBERNACULUM HARDSCRABBLE HEBEPHRENIAC HERBACEOUSLY HERBICIDALLY
HIBERNACULUM HYPERBOLICAL HYPERCARBIAS IMPIERCEABLE INABSTINENCE
INACCESSIBLE INACCESSIBLY INAPPLICABLE INCALCULABLE INCHARITABLE
INCOAGULABLE INCOGNISABLE INCOGNIZABLE INCOMMUTABLE INCOMPARABLE
INCOMPATIBLE INCOMPUTABLE INCONSOLABLE INCONSUMABLE INCORPORABLE
INCUMBRANCER INCUMBRANCES INDECLINABLE INDECLINABLY INDETECTABLE
INEFFACEABLE INEFFACEABLY INERADICABLE INERADICABLY INEXECUTABLE
INEXPLICABLE INEXPLICABLY INEXTRICABLE INEXTRICABLY INHABITANCES
INOBSERVANCE KNUCKLEBALLS LABEFACTIONS LACERABILITY LEACHABILITY
LEATHERBACKS LIBERALISTIC LIBERTICIDAL LINEBACKINGS LUMBERJACKET
MACABERESQUE MACERANDUBAS MECHANISABLE MECHANIZABLE MERCHANTABLE
METABOLOMICS METABOTROPIC MICROBALANCE MICROWAVABLE MOUCHARABIES
MULTICHAMBER MYCOBACTERIA MYELOBLASTIC NECROPHOBIAS NONALGEBRAIC
NONBACTERIAL NONCOMBATIVE NONCRUSHABLE NONDIABETICS NOTICEBOARDS
OBJECTIVATED OBJECTIVATES OBLANCEOLATE OBSECRATIONS OBSERVANCIES
OBSTETRICIAN OCTOSYLLABLE OSTEOBLASTIC OSTRACISABLE OSTRACIZABLE
OVERABSTRACT OVERBALANCED OVERBALANCES OVERBLEACHED OVERBLEACHES
PALEOBOTANIC PAPERBACKERS PAPERBACKING PARTICIPABLE PERTURBANCES
PICKELHAUBES PLACABLENESS PLEBISCITARY PRECIPITABLE PREDIABETICS
PREFABRICATE PRESBYACUSES PRESBYACUSIS PROBLEMATICS PROBOSCIDEAN
PROCARBAZINE PROSECUTABLE PROTRACTIBLE PROTUBERANCE PROTUBERANCY
PSYCHOBABBLE QUARTERBACKS RACQUETBALLS REBROADCASTS RECALIBRATED
RECALIBRATES RECHARGEABLE RECOGNISABLE RECOGNISABLY RECOGNIZABLE
RECOGNIZABLY RECOMBINANTS RECONCILABLE RECONCILABLY RECYCLEABLES
RELUBRICATED RELUBRICATES REMEMBRANCER REMEMBRANCES RENOUNCEABLE
REPROACHABLE REPROACHABLY RESEARCHABLE RESEMBLANCES RESPECTABLES
RESUSCITABLE RETRENCHABLE REVOCABILITY RHABDOCOELES RHABDOMANCER
RIBONUCLEASE ROCKABILLIES RUBEFACIENTS RUBEFACTIONS SABERMETRICS
SADDLEBACKED SANCTIFIABLE SANCTIONABLE SCABBARDLESS SCABBINESSES
SCABRIDITIES SCABROUSNESS SCALABLENESS SCALDBERRIES SCARABAEISTS
SCARABAEOIDS SCARABAEUSES SCATTERBRAIN SCRAPBOOKERS SCRAPERBOARD
SCRIEVEBOARD SCRIVEBOARDS SCROBICULATE SECOBARBITAL SEMIABSTRACT
SHACKLEBONES SNOBOCRACIES SOCIABLENESS SOCIALISABLE SOCIALIZABLE
SORBEFACIENT STICKLEBACKS STICKYBEAKED STRADDLEBACK SUBACIDITIES
SUBALLIANCES SUBALLOCATED SUBALLOCATES SUBCELESTIAL SUBCENTRALLY
SUBCHARTERED SUBCUTANEOUS SUBDEACONATE SUBDIACONATE SUBDUPLICATE
SUBFACULTIES SUBINDICATED SUBINDICATES SUBJACENCIES SUBOPERCULAR
SUBSCRIBABLE SUBSECRETARY SUBSPECIALTY SUBTENANCIES SUBVOCALISED
SUBVOCALISES SUBVOCALIZED SUBVOCALIZES SUPERCABINET SWASHBUCKLED
SWASHBUCKLER SWASHBUCKLES SWITCHBACKED SWITCHBLADES SYLLABICATED
SYLLABICATES TABEFACTIONS TABERNACLING TABERNACULAR TEACHABILITY
TECHNOBABBLE TECHNOPHOBIA TECTIBRANCHS THEOPHOBIACS TORCHBEARERS
TRABECULATED TRACEABILITY TRACKERBALLS TRANSCRIBERS TUBERCULARLY
TUBERCULATED TUBERCULOMAS TUBOCURARINE TURBOCHARGED TURBOCHARGER
TURNBROACHES UNACCEPTABLE UNACCEPTABLY UNACHIEVABLE UNAPPLICABLE
UNASCENDABLE UNASCENDIBLE UNBARRICADED UNBARRICADES UNBENEFICIAL
UNBREACHABLE UNCALIBRATED UNCAPSIZABLE UNCAPTURABLE UNCATCHABLES
UNCELEBRATED UNCHANGEABLE UNCHANGEABLY UNCHARITABLE UNCOMEATABLE
UNCOMPOSABLE UNCONFINABLE UNCREDITABLE UNCULTIVABLE UNDECEIVABLE
UNDELECTABLE UNDETECTABLE UNDETECTABLY UNNOTICEABLE UNNOTICEABLY
UNOBSERVANCE UNPROCURABLE UNQUENCHABLE UNQUENCHABLY UNRECALLABLE
UNRECKONABLE UNRECYCLABLE UNRESECTABLE UNSCABBARDED UNSCRAMBLERS
UNSEARCHABLE UNSEARCHABLY UNSTANCHABLE UNTOUCHABLES VERBENACEOUS
VIBRATIUNCLE VOCABULARIED VOCABULARIES VULCANISABLE VULCANIZABLE
WALLCLIMBERS ZALCITABINES