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