There are 722 thirteen-letter words containing 2A and B, https://www.bestwordlist.com/c/a/3/13letterwordswithaab.htm
ABBREVIATIONS ABBREVIATURES ABIOGENICALLY ABNORMALITIES ABORIGINALISM
ABORIGINALITY ABORTIFACIENT ABSORBABILITY ABSQUATULATED ABSQUATULATES
ABSTRACTIONAL ABSTRACTIVELY ABYSSOPELAGIC ACCEPTABILITY ACINETOBACTER
ACQUIRABILITY ACROBATICALLY ACTINOBACILLI ADAPTABLENESS ADIABATICALLY
ADJUSTABILITY ADMINISTRABLE ADMIRABLENESS ADORABILITIES ADSORBABILITY
ADUMBRATIVELY ADVANTAGEABLE ADVERBIALISED ADVERBIALISES ADVERBIALIZED
ADVERBIALIZES ADVISABLENESS AFFECTABILITY AFFORDABILITY AGREEABLENESS
AICHMOPHOBIAS AILOUROPHOBIA AILUROPHOBIAS ALEMBICATIONS ALGEBRAICALLY
ALLOWABLENESS ALPHABETARIAN ALPHABETIFORM ALPHABETISERS ALPHABETISING
ALPHABETIZERS ALPHABETIZING AMBASSADORIAL AMBISEXUALITY AMBIVALENCIES
AMENABILITIES AMIABLENESSES AMICABILITIES AMPHIBLASTULA ANAEROBICALLY
ANALPHABETICS ANALPHABETISM ANALYSABILITY ANALYZABILITY ANGLOPHOBIACS
ANSWERABILITY ANTAGONISABLE ANTAGONIZABLE ANTIBACTERIAL ANTIBALLISTIC
ANTIBILLBOARD ANTIBLACKISMS ANTICIPATABLE ANTIDIABETICS ANTIMETABOLES
ANTIMETABOLIC ANTIMICROBIAL ANTISUBMARINE APPEALABILITY APPLICABILITY
APPORTIONABLE ARABICISATION ARABICIZATION ARACHNOPHOBES ARACHNOPHOBIA
ARACHNOPHOBIC ARBITRARINESS ARBITRATIONAL ARBITRATRICES ARBITRATRIXES
ARBORISATIONS ARBORIZATIONS ARCHAEOBOTANY ARITHMOPHOBIA ASCERTAINABLE
ASCERTAINABLY ASSEMBLAGISTS ASSEMBLAUNCES ASSEMBLYWOMAN ASSIBILATIONS
ASSIGNABILITY ASSOCIABILITY ASSUBJUGATING ASTRAPOPHOBIA ASTROBOTANIES
ATTAINABILITY ATTRIBUTIONAL AUTOBIOGRAPHY AUTOSTABILITY AVAILABLENESS
BACCALAUREATE BACCHANALIANS BACKGAMMONING BACKPEDALLING BACKSCATTERED
BACKSCRATCHED BACKSCRATCHER BACKSCRATCHES BACKSLAPPINGS BACKSTABBINGS
BACKSTARTINGS BACKSTRAIGHTS BACKSWORDSMAN BACKTRACKINGS BACKWARDATION
BACTERIOCIDAL BACTERIOPHAGE BACTERIOPHAGY BACTERIOSTATS BACTERISATION
BACTERIZATION BALKANISATION BALKANIZATION BALLADMONGERS BALLANWRASSES
BALLETOMANIAS BALLHANDLINGS BALLISTICALLY BALMORALITIES BALNEOLOGICAL
BALNEOTHERAPY BALSAMIFEROUS BANALISATIONS BANALIZATIONS BANCASSURANCE
BANDSPREADING BANKABILITIES BANTAMWEIGHTS BARAESTHESIAS BARBARIANISMS
BARBARISATION BARBARIZATION BARBAROUSNESS BAREFACEDNESS BARNSBREAKING
BASIFICATIONS BASKETBALLERS BASKETWEAVERS BATHYMETRICAL BEARABILITIES
BEATIFICATION BEAUMONTAGUES BEHAVIOURALLY BETACAROTENES BIBLIOMANIACS
BICAMERALISMS BICAMERALISTS BILATERALISMS BIOACCUMULATE BIOBEHAVIORAL
BIODEGRADABLE BIOMECHANICAL BIOSTATICALLY BIPARTISANISM BLACKBALLINGS
BLACKCURRANTS BLACKGUARDING BLACKGUARDISM BLADDERWRACKS BLAMEABLENESS
BLASTULATIONS BLEPHAROPLAST BLEPHAROSPASM BOARDSAILINGS BODDHISATTVAS
BOMBASTICALLY BORAGINACEOUS BOTANOMANCIES BOUGAINVILIAS BOUGAINVILLEA
BOUILLABAISSE BRACHIOSAURUS BRACHYCEPHALS BRACHYCEPHALY BRACHYDACTYLY
BRACHYTHERAPY BRADYKINESIAS BRAGGADOCIOUS BRAGGARTLIEST BRAINWASHINGS
BRASSICACEOUS BREADBOARDING BREAKABLENESS BREAKDANCINGS BREATHABILITY
BREATHALYSERS BREATHALYSING BREATHALYZERS BREATHALYZING BROADCASTINGS
BRUTALISATION BRUTALIZATION BUREAUCRACIES BUREAUCRATESE BUREAUCRATISE
BUREAUCRATISM BUREAUCRATIST BUREAUCRATIZE CABBALISTICAL CABINETMAKERS
CABINETMAKING CALCULABILITY CAMPYLOBACTER CANCEROPHOBIA CANCERPHOBIAS
CANNIBALISING CANNIBALISTIC CANNIBALIZING CANNONBALLING CAPABLENESSES
CARBAMAZEPINE CARBOHYDRASES CARBOHYDRATES CARBONISATION CARBONIZATION
CARBONYLATING CARBONYLATION CARBOXYLATING CARBOXYLATION CARBURISATION
CARBURIZATION CARDBOARDIEST CARPETBAGGERS CARPETBAGGERY CARPETBAGGING
CASTABILITIES CATABOLICALLY CATEGORIZABLE CAUSABILITIES CELIBATARIANS
CHALLENGEABLE CHANGEABILITY CHARGEABILITY CHATEAUBRIAND CIRCUMAMBAGES
CLAPPERBOARDS CLAVICEMBALOS CLEAVABLENESS COAGULABILITY COCARBOXYLASE
COHABITATIONS COLLABORATING COLLABORATION COLLABORATIVE COLLABORATORS
COMBINATIONAL COMBINATORIAL COMMEASURABLE COMPANIONABLE COMPANIONABLY
COMPARABILITY CONFABULATING CONFABULATION CONFABULATORS CONFABULATORY
CONFISCATABLE CONGRATULABLE CONSTRAINABLE CONTRABANDISM CONTRABANDIST
CONTRABASSIST CONTRABASSOON CONTRABBASSOS CRYSTALISABLE CRYSTALIZABLE
CYANOBACTERIA CYBERATTACKER DAMAGEABILITY DAMNABILITIES DAUGHTERBOARD
DECARBONATING DECARBONATION DECARBONATORS DECARBOXYLASE DECARBOXYLATE
DECARBURATION DECASYLLABICS DECASYLLABLES DEGRADABILITY DERMABRASIONS
DETACHABILITY DIALYSABILITY DIALYZABILITY DIBRANCHIATES DIEFFENBACHIA
DILATABLENESS DISAGREEABLES DISAMBIGUATED DISAMBIGUATES DISCHARGEABLE
DISHABILITATE DRAPABILITIES DRAUGHTBOARDS EDUCATABILITY ELABORATENESS
ELABORATORIES ELASMOBRANCHS EMBARRASSABLE EMBARRASSEDLY EMBARRASSMENT
EQUIBALANCING ERASABILITIES ESTABLISHABLE EVAPORABILITY EXACERBATIONS
EXAMINABILITY EXPANDABILITY FACTORABILITY FATIGABLENESS FAVORABLENESS
FEATHERBRAINS FIBROMYALGIAS FIBROSARCOMAS FIBROVASCULAR FLABBERGASTED
FLABELLATIONS FLAMBOYANCIES FLANNELBOARDS FRANCOPHOBIAS FUNAMBULATING
FUNAMBULATION FUNAMBULATORS FUNAMBULATORY GENERALISABLE GENERALIZABLE
GLIOBLASTOMAS GLOBALISATION GLOBALIZATION GRADABILITIES GRAPHITISABLE
GRAPHITIZABLE GRAPHOPHOBIAS GUBERNATORIAL HABILITATIONS HABITABLENESS
HAEMATOBLASTS HAIRSBREADTHS HANDSBREADTHS HANGABILITIES HARBORMASTERS
HARDSCRABBLES HEARTBREAKERS HEARTBREAKING HEBDOMADARIES HEBRAISATIONS
HEBRAIZATIONS HEMATOBLASTIC HEPTASYLLABIC HEXOBARBITALS HYPERVARIABLE
IAMBOGRAPHERS ILLUSTRATABLE IMPALPABILITY IMPASSABILITY IMPLACABILITY
IMPRACTICABLE IMPRACTICABLY IMPREGNATABLE INAPPRECIABLE INAPPRECIABLY
INCAPABLENESS INDEFATIGABLE INDEFATIGABLY INDISSUADABLE INDISSUADABLY
INELABORATELY INELABORATING INEXPLAINABLE INEXPLAINABLY INHABITANCIES
INHABITATIONS INSATIABILITY INSUBSTANTIAL INTRACEREBRAL INTRAVERSABLE
INVARIABILITY IRRECLAIMABLE IRRECLAIMABLY IRREPLACEABLE IRREPLACEABLY
ISOCARBOXAZID JAWBREAKINGLY KATABOLICALLY LABANOTATIONS LABEFACTATION
LABIALISATION LABIALIZATION LABYRINTHICAL LACTOBACILLUS LAMELLIBRANCH
LANDBOARDINGS LAUDABILITIES LAUGHABLENESS LIBRARIANSHIP LUBRICATIONAL
MACHINABILITY MAILABILITIES MALABSORPTION MALLEABLENESS MANAGEABILITY
MANIPULATABLE MARIMBAPHONES MARKETABILITY MARSIPOBRANCH MASSARANDUBAS
MASSERANDUBAS MASTURBATIONS MATCHBOARDING MEASURABILITY MEGALOBLASTIC
MEMBRANACEOUS METABOLICALLY METABOLISABLE METABOLIZABLE METAGRABOLISE
METAGRABOLIZE METASTABILITY MICROBALANCES MICROHABITATS MICROWAVEABLE
MINERALISABLE MINERALIZABLE MOUNTAINBOARD MULTIVARIABLE MYCOBACTERIAL
NAVIGABLENESS NEUROBLASTOMA NITROBACTERIA NONABSORBABLE NONALPHABETIC
NONBEHAVIORAL NONBREAKABLES NONBROADCASTS NONCANCELABLE NONCOMBATANTS
NONCOMPARABLE NONDEGRADABLE NONDETACHABLE NONDIALYSABLE NONDIALYZABLE
NONFLAMMABLES NONLIBRARIANS NONMEASURABLE OBSERVATIONAL OBTAINABILITY
OUTBARGAINING OVERABUNDANCE OVERBALANCING OVERELABORATE PACKABILITIES
PAEDOBAPTISMS PAEDOBAPTISTS PAINTBALLINGS PALAEOBIOLOGY PALAEOBOTANIC
PALATABLENESS PALEOBOTANIES PALEOBOTANIST PALPABILITIES PARABOLANUSES
PARABOLICALLY PARAPHRASABLE PARASYMBIONTS PARASYMBIOSES PARASYMBIOSIS
PARASYMBIOTIC PARTICLEBOARD PATENTABILITY PEACEABLENESS PENTABARBITAL
PENTASYLLABIC PENTOBARBITAL PERAMBULATING PERAMBULATION PERAMBULATORS
PERAMBULATORY PHENOBARBITAL PLACABILITIES PLASTERBOARDS PLAYABILITIES
POLYCARBONATE PREAMBULATING PREAMBULATORY PREFABRICATED PREFABRICATES
PREFABRICATOR PREMANDIBULAR PROBATIONALLY PROBLEMATICAL PROCARBAZINES
PROGRAMMABLES PROPAGABILITY QUARTERBACKED RADIOLABELING RADIOLABELLED
RATABLENESSES RATEABILITIES RATTLEBRAINED READABILITIES REALISABILITY
REALIZABILITY REASONABILITY REASSEMBLAGES REBARBATIVELY REBROADCASTED
RECALIBRATING RECALIBRATION RECALLABILITY REHABILITANTS REHABILITATED
REHABILITATES REHABILITATOR REMARKABILITY REPAIRABILITY REPEATABILITY
REVEALABILITY RHABDOMANCERS RHABDOMANCIES RHABDOMANTIST RHABDOMYOMATA
ROADABILITIES SACRIFICEABLE SAILBOARDINGS SALABLENESSES SALEABILITIES
SALVABILITIES SANDBLASTINGS SATANOPHOBIAS SATIABILITIES SAVABLENESSES
SCALABILITIES SCATTERBRAINS SCRAPERBOARDS SCRATCHBOARDS SEARCHABILITY
SEASONABILITY SECOBARBITALS SEMIABSTRACTS SEMICARBAZIDE SEMICARBAZONE
SEPARABLENESS SHAMBOLICALLY SIMARUBACEOUS SKATEBOARDERS SKATEBOARDING
SLAUGHTERABLE SOMNAMBULANCE SOMNAMBULANTS SOMNAMBULATED SOMNAMBULATES
SOMNAMBULATOR SPERMATOBLAST SPREADABILITY STABILISATION STABILISATORS
STABILIZATION STABILIZATORS STANDARDBREDS SUBAGGREGATES SUBALLOCATING
SUBALLOCATION SUBALTERNANTS SUBALTERNATES SUBAPPEARANCE SUBARACHNOIDS
SUBARCUATIONS SUBARRHATIONS SUBCLAVICULAR SUBDEACONATES SUBDIACONATES
SUBEQUATORIAL SUBFACTORIALS SUBHASTATIONS SUBLANCEOLATE SUBLAPSARIANS
SUBLIBRARIANS SUBMANDIBULAR SUBMARGINALLY SUBPARAGRAPHS SUBSATURATION
SUBSIDIARIATS SUBSTANTIALLY SUBSTANTIATED SUBSTANTIATES SUBSTANTIATOR
SUBTERNATURAL SUBTERRANEANS SUBTRIANGULAR SUBURBICARIAN SUPERABUNDANT
SUPERANNUABLE SYBARITICALLY SYLLABICATING SYLLABICATION SYLLABOGRAPHY
TALKABILITIES TAMABLENESSES TAMEABILITIES TAUTOSYLLABIC TAXABLENESSES
TEACHABLENESS TERATOPHOBIAS TETRABASICITY TETRASYLLABIC TETRASYLLABLE
THANATOPHOBIA THERMOBALANCE THIABENDAZOLE THIOCARBAMIDE TIMBROMANIACS
TINTINNABULAR TOBACCANALIAN TRACEABLENESS TRACTABLENESS TRAILBLAZINGS
TRAILBREAKERS TRANSCRIBABLE TRANSFERRABLE TRANSFORMABLE TRANSMEMBRANE
TRANSMITTABLE TRANSPORTABLE TRISYLLABICAL TUBERCULOMATA TURBELLARIANS
UBIQUITARIANS ULTRALIBERALS ULTRARELIABLE ULTRAWIDEBAND UNABBREVIATED
UNACCOUNTABLE UNACCOUNTABLY UNAMIABLENESS UNASSIMILABLE UNASSIMILABLY
UNASSUAGEABLE UNBARRICADING UNCHASTISABLE UNCHASTIZABLE UNCONCEALABLE
UNCONTAINABLE UNDIAGNOSABLE UNEATABLENESS UNEMBARRASSED UNEXPLAINABLE
UNEXPLAINABLY UNFALSIFIABLE UNFASHIONABLE UNFASHIONABLY UNGAINSAYABLE
UNIMPEACHABLE UNIMPEACHABLY UNINFLAMMABLE UNINHABITABLE UNMISTAKEABLE
UNMISTAKEABLY UNPERSUADABLE UNPLEASURABLE UNPLEASURABLY UNPOLARISABLE
UNPOLARIZABLE UNPRACTICABLE UNPURCHASABLE UNQUALIFIABLE UNREADABILITY
UNRECLAIMABLE UNRECLAIMABLY UNREPLACEABLE UNSALEABILITY UNSALVAGEABLE
UNSALVAGEABLY UNSATISFIABLE UNSCABBARDING UNSEARCHABLES UNSTAUNCHABLE
UNSUBSTANTIAL UNSURPASSABLE UNSURPASSABLY UNSUSTAINABLE UNSUSTAINABLY
UNTAMABLENESS UNTRAVERSABLE UNWARRANTABLE UNWARRANTABLY UPGRADABILITY
URBANISATIONS URBANIZATIONS VAGABONDISING VAGABONDIZING VAPOURABILITY
VARIABILITIES VERBALISATION VERBALIZATION VIBRACULARIUM VIBRAHARPISTS
VOCABULARIANS VOLATILISABLE VOLATILIZABLE VRAISEMBLANCE WAKEBOARDINGS
WASHABILITIES WATERBOARDING WEARABILITIES WEATHERBOARDS WHATABOUTISMS
XYLOBALSAMUMS ZALAMBDODONTS