There are 745 twelve-letter words containing A, B and 2I, https://www.bestwordlist.com/c/a/4/12letterwordswithabii.htm
ABBREVIATING ABBREVIATION ABIOTROPHIES ABIRRITATING ABOLITIONARY
ABOLITIONISM ABOLITIONIST ABOMINATIONS ABORIGINALLY ABORTIONISTS
ABSINTHIATED ABSOLUTISING ABSOLUTISTIC ABSOLUTIZING ABSORPTIVITY
ABSTINENCIES ABSTRICTIONS ABSTRUSITIES ACTABILITIES ADAPTABILITY
ADMIRABILITY ADOPTABILITY ADVERBIALISE ADVERBIALIZE ADVISABILITY
AEROBICISING AEROBICIZING AFFABILITIES AGREEABILITY AGRIBUSINESS
AICHMOPHOBIA AILUROPHOBIA AILUROPHOBIC AIRBOARDINGS ALBUMENISING
ALBUMENIZING ALBUMINISING ALBUMINIZING ALBUMINURIAS ALEMBICATION
ALIENABILITY ALLOWABILITY ALTERABILITY AMBIOPHONIES AMBITIONLESS
AMBIVERSIONS AMIABILITIES AMINOBENZOIC AMISSIBILITY AMPHIBIOUSLY
AMPHIBLASTIC AMPHIBOLITES AMPHIBRACHIC AMPHISBAENIC ANABAPTISING
ANABAPTISTIC ANABAPTIZING ANAEROBIOSIS ANAEROBIOTIC ANTIABORTION
ANTIBACCHIUS ANTIBLACKISM ANTIBUSINESS ANTIDIABETIC ANTIFEBRILES
ANTIGAMBLING ANTIGLOBULIN ANTIJACOBINS ANTIKICKBACK ANTILIBERALS
ANTITHROMBIN ARABINOSIDES ARABISATIONS ARABIZATIONS ARBITRATIONS
ARBORISATION ARBORIZATION ASSIBILATING ASSIBILATION ASSUMABILITY
ATTRIBUTIONS ATTRIBUTIVES AUDIBILITIES AUDIBILIZING AUDITABILITY
AUTOMOBILING AUTOMOBILISM AUTOMOBILIST AUTOMOBILITY AVAILABILITY
BABINGTONITE BABYSITTINGS BACILLAEMIAS BACILLICIDES BACKFILLINGS
BACKFITTINGS BACKFLIPPING BACKLIGHTING BACKSHISHING BACKSLIDINGS
BACKSPEIRING BACTERICIDAL BACTERICIDES BACTERIOCIDE BACTERIOCINS
BACTERIURIAS BAILIFFSHIPS BAILLIESHIPS BAKHSHISHING BANALISATION
BANALIZATION BANDICOOTING BAPTISTERIES BARBARIANISM BARRICADOING
BARRISTERIAL BASIDIOCARPS BASIDIOSPORE BASIFICATION BASTARDISING
BASTARDIZING BASTINADOING BEARBAITINGS BEATIFICALLY BEHAVIORISMS
BEHAVIORISTS BEHAVIOURISM BEHAVIOURIST BENEFICIALLY BENEFICIATED
BENEFICIATES BENIGNANCIES BESTIALISING BESTIALITIES BESTIALIZING
BIAURICULATE BIBLIOGRAPHY BIBLIOLATERS BIBLIOMANIAC BIBLIOMANIAS
BIBLIOPHOBIA BIBLIOTHECAE BIBLIOTHECAL BIBLIOTHECAS BICAMERALISM
BICAMERALIST BICENTENNIAL BICUSPIDATES BIFUNCTIONAL BIFURCATIONS
BILATERALISM BILHARZIASES BILHARZIASIS BILHARZIOSES BILHARZIOSIS
BILINGUALISM BILINGUALITY BILLBOARDING BILLINGSGATE BILLIONAIRES
BIMESTRIALLY BIMETALLISMS BIMETALLISTS BIMILLENNIAL BIMODALITIES
BINOCULARITY BIOACOUSTICS BIOAERATIONS BIOAVAILABLE BIOCATALYSIS
BIOCATALYTIC BIOCHEMICALS BIODEGRADING BIODYNAMICAL BIOFLAVONOID
BIOGENETICAL BIOGRAPHICAL BIOGRAPHISED BIOGRAPHISES BIOGRAPHIZED
BIOGRAPHIZES BIOIDENTICAL BIOLOGICALLY BIOMAGNETICS BIOMATERIALS
BIOMECHANICS BIOMETRICIAN BIONOMICALLY BIOPRIVACIES BIOSATELLITE
BIOTECHNICAL BIOTURBATION BIPARTITIONS BIPEDALITIES BIPOLARISING
BIPOLARITIES BIPOLARIZING BIQUADRATICS BIRACIALISMS BIRDWATCHING
BISEXUALISMS BISOCIATIONS BITONALITIES BITUMINATING BLACKBIRDING
BLACKLISTING BLACKMAILING BLIZZARDIEST BOARDSAILING BOATBUILDING
BOHEMIANISMS BOILERMAKING BOKMAKIERIES BOMBILATIONS BOMBINATIONS
BOROSILICATE BOUGAINVILIA BRAAIVLEISES BRACHIATIONS BRADYKINESIA
BRAININESSES BRAINWASHING BRATTISHINGS BREADWINNING BRECCIATIONS
BRICKLAYINGS BRICKMAKINGS BRIDEMAIDENS BRILLIANCIES BRILLIANTINE
BRILLIANTING BRINKMANSHIP BRISTLETAILS BROMINATIONS BRUSHABILITY
BUCCANIERING BULLBAITINGS BUPIVACAINES BURGLARISING BURGLARIZING
CABALISTICAL CABLEVISIONS CALIBRATIONS CANNABIDIOLS CANNABINOIDS
CANNIBALISED CANNIBALISES CANNIBALISMS CANNIBALIZED CANNIBALIZES
CAPABILITIES CARBAMIDINES CATABOLISING CATABOLIZING CELIBATARIAN
CHARBROILING CHILDBEARING CHINABERRIES CLASSIFIABLE CLEANABILITY
CLEAVABILITY CLUBBABILITY COENOBITICAL COHABITATION COLORABILITY
COMBINATIONS CONNUBIALISM CONNUBIALITY CORNBRAIDING COUNTABILITY
CRISTOBALITE CRITICISABLE CRITICIZABLE CROSSABILITY CRUSHABILITY
CUBISTICALLY CURABILITIES CUTABILITIES DAUNORUBICIN DEBILITATING
DEBILITATION DEBILITATIVE DECIDABILITY DEFIBRILLATE DEFIBRINATED
DEFIBRINATES DEFINABILITY DELIBERATING DELIBERATION DELIBERATIVE
DEMIBASTIONS DESIRABILITY DESTABILISED DESTABILISER DESTABILISES
DESTABILIZED DESTABILIZER DESTABILIZES DETONABILITY DETRIBALISED
DETRIBALISES DETRIBALIZED DETRIBALIZES DIABETOGENIC DIABOLICALLY
DIBASICITIES DIBRANCHIATE DICARBOXYLIC DIFFRANGIBLE DILATABILITY
DIMINISHABLE DIPLOBLASTIC DISABILITIES DISAMBIGUATE DISBRANCHING
DISEMBARKING DISESTABLISH DISSYLLABIFY DISSYLLABISM DISTRACTIBLE
DISTRAINABLE DISTRIBUTARY DISTURBATIVE DISYLLABISMS DITHYRAMBIST
DRAPEABILITY DRILLABILITY DRINKABILITY DRIVEABILITY DUBITATIVELY
DUPABILITIES DURABILITIES DYEABILITIES ELECTABILITY EMBOLISATION
EMBOLIZATION EMULSIFIABLE ENDURABILITY ENSILABILITY ENTEROBIASIS
EPHEBOPHILIA EQUABILITIES EQUATABILITY EQUILIBRANTS EQUILIBRATED
EQUILIBRATES EQUILIBRATOR EQUITABILITY ESTABLISHING EXCITABILITY
EXORBITATING FABRICATIONS FABULOSITIES FALLIBILISMS FALLIBILISTS
FATIGABILITY FAVORABILITY FEBRIFACIENT FERTILISABLE FERTILIZABLE
FIBERISATION FIBERIZATION FIBRILLATING FIBRILLATION FIBROBLASTIC
FIBROMYALGIA FIGURABILITY FILTRABILITY FIMBRIATIONS FISSIONABLES
FLAMMABILITY FLOATABILITY FORGEABILITY FOSSILISABLE FOSSILIZABLE
FRANGIBILITY FRIABILITIES GLOBIGERINAE GLOBIGERINAS HABILITATING
HABILITATION HABILITATORS HABITABILITY HABITATIONAL HABITUATIONS
HAPLOBIONTIC HARBINGERING HATCHABILITY HEBRAISATION HEBRAIZATION
HERBICIDALLY HERITABILITY HIBERNATIONS HIEROPHOBIAS HONORABILITY
HYBRIDISABLE HYBRIDIZABLE IDENTIFIABLE IDENTIFIABLY IGNITABILITY
ILLIBERALISE ILLIBERALISM ILLIBERALITY ILLIBERALIZE IMBIBITIONAL
IMBRICATIONS IMITABLENESS IMMOVABILITY IMMUTABILITY IMPERISHABLE
IMPERISHABLY IMPIERCEABLE IMPRISONABLE IMPROBATIONS IMPUTABILITY
INABSTINENCE INACCESSIBLE INACCESSIBLY INADMISSIBLE INADMISSIBLY
INAPPLICABLE INAPPLICABLY INAUDIBILITY INCAPABILITY INCHARITABLE
INCOGNISABLE INCOGNIZABLE INCOMPATIBLE INCOMPATIBLY INCUBATIONAL
INCUNABULIST INCURABILITY INDECLINABLE INDECLINABLY INDEFEASIBLE
INDEFEASIBLY INDEFINABLES INDISPUTABLE INDISPUTABLY INEBRIATIONS
INEFFABILITY INERADICABLE INERADICABLY INERRABILITY INEXPANSIBLE
INEXPLICABLE INEXPLICABLY INEXTIRPABLE INEXTRICABLE INEXTRICABLY
INFIBULATING INFIBULATION INFORMIDABLE INFRAORBITAL INFUNDIBULAR
INHABITANCES INHABITATION INHOSPITABLE INHOSPITABLY INNOMINABLES
INSALUBRIOUS INSURABILITY INTERLIBRARY INTERMINABLE INTERMINABLY
INTERORBITAL INTURBIDATED INTURBIDATES INURBANITIES INVESTIGABLE
INVIABLENESS IRAIMBILANJA IRASCIBILITY IRREALISABLE IRREALIZABLE
IRRELIEVABLE IRREMEDIABLE IRREMEDIABLY IRREPAIRABLE IRRESISTABLE
IRRESISTABLY IRRESPIRABLE IRRITABILITY ISOBILATERAL JAILBREAKING
KITEBOARDING LABYRINTHIAN LABYRINTHINE LACERABILITY LACTOBACILLI
LANGBEINITES LEACHABILITY LEARNABILITY LIBERALISERS LIBERALISING
LIBERALISTIC LIBERALITIES LIBERALIZERS LIBERALIZING LIBERTARIANS
LIBERTICIDAL LIBERTINAGES LIKABILITIES LINEBACKINGS LIQUIDAMBARS
LIVABILITIES LOVABILITIES LUBRICATIONS MACROBIOTICS MAINTAINABLE
MALLEABILITY MANIFESTIBLE MEMORABILITY METABOLISING METABOLIZING
MICROBICIDAL MICROHABITAT MILLILAMBERT MINICABBINGS MISATTRIBUTE
MISBALANCING MISBEHAVIORS MISBEHAVIOUR MISERABILISM MISERABILIST
MISERABLISMS MISERABLISTS MISLABELLING MISLABOURING MIXABILITIES
MIXOBARBARIC MOBILISATION MOBILIZATION MODULABILITY MORBIFICALLY
MOULDABILITY MOVABILITIES MULTIPLIABLE MURDERABILIA MUTABILITIES
MYOFIBRILLAR NAVIGABILITY NEBULISATION NEBULIZATION NOBILITATING
NOBILITATION NONADIABATIC NONDIABETICS NONLIBRARIAN NONLIBRARIES
NONMICROBIAL NOTABILITIES NUMERABILITY OBEDIENTIARY OBLIGATIONAL
OBLIGATORILY OBLIQUATIONS OBLITERATING OBLITERATION OBLITERATIVE
OBNUBILATING OBNUBILATION OBSIGNATIONS OBSTETRICIAN OBSTIPATIONS
OPPOSABILITY ORBICULARITY PAINTBALLING PALATABILITY PARABOLISING
PARABOLIZING PARISYLLABIC PARTICIPABLE PERMEABILITY PICKABACKING
PIGGYBACKING PITIABLENESS PLAUSIBILITY PLEBEIANISED PLEBEIANISES
PLEBEIANISMS PLEBEIANIZED PLEBEIANIZES PLEBISCITARY PLIABILITIES
POSTBIBLICAL POTABILITIES PRECIPITABLE PREDIABETICS PREGNABILITY
PRELIBATIONS PREOBTAINING PRINTABILITY PROBABILISMS PROBABILISTS
PROBOSCIDIAN PROVEABILITY PUBLICATIONS PUPILABILITY QUANTIFIABLE
RABBINICALLY RABBITFISHES RADIOBIOLOGY RATABILITIES REFUTABILITY
REHABILITANT REHABILITATE REINHABITING RELATABILITY REMOVABILITY
RENEWABILITY REPARABILITY REPUTABILITY RESTABILISED RESTABILISES
RESTABILIZED RESTABILIZES REVIVABILITY REVOCABILITY REVOKABILITY
RIBOFLAVINES RIDABILITIES ROADBUILDING ROBOTISATION ROBOTIZATION
ROCKABILLIES RUBRICATIONS SABULOSITIES SAILBOARDING SAILBOATINGS
SALABILITIES SANCTIFIABLE SAPONIFIABLE SATURABILITY SCABRIDITIES
SCAMBAITINGS SCRUTABILITY SEPARABILITY SEVERABILITY SEWABILITIES
SHAREABILITY SHOCKABILITY SIMPLIFIABLE SITIOPHOBIAS SKIMBOARDING
SOCIALISABLE SOCIALIZABLE SOLIDIFIABLE SPORTABILITY STABILISATOR
STABILIZATOR STAINABILITY STERILISABLE STERILIZABLE STICKABILITY
STRABISMICAL STROBILATING STROBILATION SUBACIDITIES SUBAUDITIONS
SUBCLIMACTIC SUBDIVIDABLE SUBEDITORIAL SUBERISATION SUBERIZATION
SUBINDICATED SUBINDICATES SUBIRRIGATED SUBIRRIGATES SUBLIBRARIAN
SUBLIMATIONS SUBLIMINALLY SUBLINEATION SUBMINIATURE SUBOCCIPITAL
SUBPRINCIPAL SUBSIDIARIAT SUBSIDIARIES SUBSIDIARILY SUBSIDIARITY
SUBSIDISABLE SUBSIDIZABLE SUBVARIETIES SUEABILITIES SUPERABILITY
SYLLABIFYING TABULARISING TABULARIZING TAMABILITIES TAMBOURINIST
TARBOGGINING TAXABILITIES TEACHABILITY TEMPTABILITY TENABILITIES
THIOBACILLUS TIBIOFIBULAE TIBIOFIBULAS TIMBROMANIAC TIMBROMANIAS
TIMETABLINGS TINTINNABULA TOLERABILITY TOXICOPHOBIA TOXIPHOBIACS
TRACEABILITY TRACTABILITY TRAILBLAZING TRAINABILITY TRANSCRIBING
TREATABILITY TRIBOLOGICAL TRIBULATIONS TROMBIDIASES TROMBIDIASIS
TRUSTABILITY TUBULARITIES TUNABILITIES TURBINACIOUS TURBINATIONS
TWISTABILITY UBIQUITARIAN UMBILICATION UNAMIABILITY UNBENEFICIAL
UNIMAGINABLE UNIMAGINABLY UNINHABITEDS UNMODIFIABLE UNSALABILITY
UNTENABILITY UNVERIFIABLE UNVERIFIABLY UPBRAIDINGLY URBANISATION
URBANIZATION USEABILITIES VAPORABILITY VENERABILITY VIBRACULARIA
VIBRAHARPIST VIBRAPHONIST VIBRATIUNCLE VINBLASTINES ZALCITABINES