There are 784 twelve-letter words containing A, I and Z, https://www.bestwordlist.com/c/a/3/12letterwordswithaiz.htm
ABSOLUTIZING ACCESSORIZED ACCESSORIZES ACCLIMATIZED ACCLIMATIZER
ACCLIMATIZES ACHROMATIZED ACHROMATIZES ADULTERIZING ADVERBIALIZE
ADVERTIZINGS AEROBICIZING AEROSOLIZING AESTHETICIZE AGGRANDIZERS
AGGRANDIZING ALBUMENIZING ALBUMINIZING ALCOHOLIZING ALDOLIZATION
ALKALINIZING ALLEGORIZERS ALLEGORIZING ALPHABETIZED ALPHABETIZER
ALPHABETIZES AMINOBENZOIC AMORTIZATION AMORTIZEMENT ANABAPTIZING
ANAESTHETIZE ANALYZATIONS ANATHEMATIZE ANESTHETIZED ANESTHETIZES
ANODIZATIONS ANTAGONIZING ANTHEROZOIDS ANTHEROZOOID ANTHOLOGIZED
ANTHOLOGIZER ANTHOLOGIZES ANTIOZONANTS ANTISYZYGIES APOSTATIZING
APOSTOLIZING APOSTROPHIZE APOTHEOSIZED APOTHEOSIZES APPETIZINGLY
ARABIZATIONS ARBORIZATION ARTERIALIZED ARTERIALIZES ASEPTICIZING
ASPHETERIZED ASPHETERIZES ASSOILZIEING ASTRONOMIZED ASTRONOMIZES
ATOMIZATIONS ATTITUDINIZE AUDIBILIZING AUTHORIZABLE AUTOMATIZING
AUTOTOMIZING AXIOMATIZING AZATHIOPRINE AZOOSPERMIAS BANALIZATION
BASHIBAZOUKS BASTARDIZING BATHMITZVAHS BEDAZZLINGLY BESTIALIZING
BILHARZIASES BILHARZIASIS BILHARZIOSES BILHARZIOSIS BIOGRAPHIZED
BIOGRAPHIZES BIOHAZARDOUS BIPOLARIZING BLIZZARDIEST BURGLARIZING
CALENDARIZED CALENDARIZES CANALIZATION CANISTERIZED CANISTERIZES
CANNIBALIZED CANNIBALIZES CANONIZATION CAPERCAILZIE CAPITALIZING
CARAMELIZING CARBIMAZOLES CATABOLIZING CATALOGIZING CATALOGUIZED
CATALOGUIZES CATECHIZINGS CATEGORIZING CATHETERIZED CATHETERIZES
CATHOLICIZED CATHOLICIZES CENTRALIZERS CENTRALIZING CHALAZOGAMIC
CHANNELIZING CHAPTALIZING CHARACTERIZE CHORIZATIONS CINEMATIZING
CINNARIZINES CIRCULARIZED CIRCULARIZER CIRCULARIZES CIVILIANIZED
CIVILIANIZES CIVILIZATION CLASSICIZING CLOTRIMAZOLE COLEORRHIZAE
COLONIALIZED COLONIALIZES COLONIZATION COLORIZATION COMMUNALIZED
COMMUNALIZER COMMUNALIZES CONSERVATIZE CONTAINERIZE CORDIALIZING
CORPORATIZED CORPORATIZES CORPOREALIZE CREOLIZATION CRIMINALIZED
CRIMINALIZES CRITICIZABLE CRYSTALIZERS CRYSTALIZING CRYSTALLIZED
CRYSTALLIZER CRYSTALLIZES CURARIZATION CUSTOMIZABLE CUTINIZATION
CYCLAZOCINES CYCLIZATIONS CZAREVITCHES DECAPITALIZE DECARBONIZED
DECARBONIZER DECARBONIZES DECARBURIZED DECARBURIZES DECARTELIZED
DECARTELIZES DECASUALIZED DECASUALIZES DECENTRALIZE DECIMALIZING
DEDRAMATIZED DEDRAMATIZES DEFEUDALIZED DEFEUDALIZES DEFORMALIZED
DEFORMALIZES DEGLAMORIZED DEGLAMORIZES DEHUMANIZING DEIONIZATION
DELOCALIZING DEMAGNETIZED DEMAGNETIZER DEMAGNETIZES DEMILITARIZE
DEMINERALIZE DEMOCRATIZED DEMOCRATIZER DEMOCRATIZES DEMONETARIZE
DEMONIZATION DEMORALIZERS DEMORALIZING DEMUTUALIZED DEMUTUALIZES
DENATURALIZE DENATURIZING DENUCLEARIZE DEPAUPERIZED DEPAUPERIZES
DEPOLARIZERS DEPOLARIZING DEPUTIZATION DERACIALIZED DERACIALIZES
DERIVATIZING DESACRALIZED DESACRALIZES DESALINIZING DESEXUALIZED
DESEXUALIZES DESTABILIZED DESTABILIZER DESTABILIZES DESTIGMATIZE
DETRIBALIZED DETRIBALIZES DEVALORIZING DEVITALIZING DEVOCALIZING
DIAGONALIZED DIAGONALIZES DIALYZATIONS DIAZOMETHANE DIBENZOFURAN
DIGITALIZING DIGITIZATION DIMERIZATION DIPLOMATIZED DIPLOMATIZES
DISAUTHORIZE DISHARMONIZE DISORGANIZED DISORGANIZER DISORGANIZES
DISPAUPERIZE DISSOCIALIZE DIVINIZATION DOCKIZATIONS DRAMATIZABLE
EARLIERIZING EDITORIALIZE ELASTICIZING EMBLAZONRIES EMBLEMATIZED
EMBLEMATIZES EMBOLIZATION EMOTIONALIZE ENCARNALIZED ENCARNALIZES
ENERGIZATION ENIGMATIZING ENZOOTICALLY EQUALIZATION EROTIZATIONS
ESCHSCHOLZIA ESSENTIALIZE ESTERIZATION ETERNALIZING ETERNIZATION
ETHEREALIZED ETHEREALIZES ETHERIZATION EUTHANATIZED EUTHANATIZES
EVANGELIZERS EVANGELIZING EVENTUALIZED EVENTUALIZES EXTERNALIZED
EXTERNALIZES FACTIONALIZE FAMILIARIZED FAMILIARIZER FAMILIARIZES
FANATICIZING FARADIZATION FEDERALIZING FEMINIZATION FERTILIZABLE
FIBERIZATION FICTIONALIZE FINALIZATION FLUIDIZATION FLUPHENAZINE
FOCALIZATION FOOLHARDIZES FORMALIZABLE FORMULARIZED FORMULARIZER
FORMULARIZES FOSSILIZABLE FRACTIONIZED FRACTIONIZES FRAGMENTIZED
FRAGMENTIZES FRANCIZATION FRATERNIZERS FRATERNIZING FURAZOLIDONE
FUSTIANIZING GABERLUNZIES GADZOOKERIES GAZETTEERING GAZETTEERISH
GELATINIZERS GELATINIZING GENEALOGIZED GENEALOGIZES GENERALIZERS
GENERALIZING GLAMOURIZING GOLIATHIZING GORMANDIZERS GORMANDIZING
GOURMANDIZED GOURMANDIZES GRAMMATICIZE GRANGERIZERS GRANGERIZING
GRAPHITIZING GRECIANIZING GUTTURALIZED GUTTURALIZES HANSARDIZING
HARMONIZABLE HAUSSMANNIZE HEATHENIZING HEBRAIZATION HEMODIALYZER
HEPARINIZING HEPATIZATION HEXAMETRIZED HEXAMETRIZES HIERARCHIZED
HIERARCHIZES HISPANICIZED HISPANICIZES HISPANIOLIZE HOMINIZATION
HORIZONTALLY HOSPITALIZED HOSPITALIZES HUMANIZATION HYBRIDIZABLE
HYDRALAZINES HYPNOTIZABLE HYPOSTASIZED HYPOSTASIZES HYPOSTATIZED
HYPOSTATIZES IDEALIZATION IDOLATRIZERS IDOLATRIZING IDOLIZATIONS
ILLEGALIZING ILLIBERALIZE IMMORTALIZED IMMORTALIZER IMMORTALIZES
IMMUNIZATION IMPERIALIZED IMPERIALIZES INCOGNIZABLE INCOGNIZANCE
INFAMONIZING INFANTILIZED INFANTILIZES INFORMATIZED INFORMATIZES
INITIALIZING INTERNALIZED INTERNALIZES IRIDIZATIONS IRREALIZABLE
ISOENZYMATIC ITALIANIZING ITEMIZATIONS JEOPARDIZING JOURNALIZERS
JOURNALIZING KERATINIZING KYANIZATIONS LAICIZATIONS LAMINARIZING
LATERALIZING LATERIZATION LATINIZATION LEGALIZATION LEGITIMATIZE
LETHARGIZING LEXICALIZING LIBERALIZERS LIBERALIZING LIONIZATIONS
LITERALIZERS LITERALIZING LOCALIZATION MACADAMIZERS MACADAMIZING
MADERIZATION MAGNETIZABLE MARGINALIZED MARGINALIZES MARZIPANNING
MASCULINIZED MASCULINIZES MATERIALIZED MATERIALIZER MATERIALIZES
MATHEMATIZED MATHEMATIZES MAXIMIZATION MECHANIZABLE MEDICALIZING
MELANIZATION MEMORIALIZED MEMORIALIZER MEMORIALIZES MEMORIZATION
MERCHANDIZED MERCHANDIZER MERCHANDIZES MERCURIALIZE METABOLIZING
METALIZATION METASTASIZED METASTASIZES METATHESIZED METATHESIZES
MILITARIZING MINERALIZERS MINERALIZING MINERALOGIZE MINIATURIZED
MINIATURIZES MINIMIZATION MISEMPHASIZE MISSIONARIZE MITHRIDATIZE
MOBILIZATION MONARCHIZING MONETIZATION MORALIZATION MOTORIZATION
MUNICIPALIZE MUSICALIZING MUTAGENIZING NAPHTHALIZED NAPHTHALIZES
NASALIZATION NATIONALIZED NATIONALIZER NATIONALIZES NATURALIZING
NAZIFICATION NEBULIZATION NEOPAGANIZED NEOPAGANIZES NEUTRALIZERS
NEUTRALIZING NEWSMAGAZINE NOMADIZATION NOMINALIZING NONENZYMATIC
NORMALIZABLE NOTARIZATION NOVELIZATION NUCLEARIZING OPSONIZATION
OPTIMALIZING OPTIMIZATION ORGANIZATION ORIENTALIZED ORIENTALIZES
OSTRACIZABLE OUTBRAZENING OUTORGANIZED OUTORGANIZES OVERGRAZINGS
OVERIDEALIZE OVERORGANIZE OXIDIZATIONS OZONISATIONS OZONIZATIONS
PAGANIZATION PALATALIZING PANCREOZYMIN PANEGYRIZING PARABOLIZING
PARALLELIZED PARALLELIZES PARALOGIZING PARALYZATION PARALYZINGLY
PARAMETERIZE PARAMETRIZED PARAMETRIZES PARASITIZING PARCHMENTIZE
PARENTHESIZE PARFOCALIZED PARFOCALIZES PAROCHIALIZE PARTIALIZING
PARTIZANSHIP PASTEURIZERS PASTEURIZING PATHOLOGIZED PATHOLOGIZES
PATRIALIZING PECTIZATIONS PECULIARIZED PECULIARIZES PEDANTICIZED
PEDANTICIZES PENALIZATION PENTAZOCINES PEPTIZATIONS PERPHENAZINE
PERSONALIZED PERSONALIZES PHAGOCYTIZED PHAGOCYTIZES PHENARSAZINE
PHOSPHATIZED PHOSPHATIZES PHYSICALIZED PHYSICALIZES PICTORIALIZE
PLAGIARIZERS PLAGIARIZING PLASMOLYZING PLASTICIZERS PLASTICIZING
PLEBEIANIZED PLEBEIANIZES POLARIZATION POLITICALIZE POLYGAMIZING
POPULARIZERS POPULARIZING PORCELAINIZE PORCELLANIZE PRAGMATIZERS
PRAGMATIZING PREAUTHORIZE PRECOGNIZANT PRIVATDOZENT PROBLEMATIZE
PROCARBAZINE PRODIGALIZED PRODIGALIZES PROMETHAZINE PROPAGANDIZE
PRUSSIANIZED PRUSSIANIZES PSALMODIZING PULVERIZABLE PURITANIZING
QUANTIZATION QUIZZICALITY RACEMIZATION RADICALIZING RATIONALIZED
RATIONALIZER RATIONALIZES READVERTIZED READVERTIZES REALIZATIONS
REAUTHORIZED REAUTHORIZES RECANALIZING RECAPITALIZE RECATEGORIZE
RECENTRALIZE RECOGNIZABLE RECOGNIZABLY RECOGNIZANCE REEMPHASIZED
REEMPHASIZES REGIONALIZED REGIONALIZES REGULARIZING REHARMONIZED
REHARMONIZES REHUMANIZING RELATIVIZING REMILITARIZE REMINERALIZE
REMORALIZING RENORMALIZED RENORMALIZES REORGANIZERS REORGANIZING
REPOLARIZING REPOPULARIZE REPRIVATIZED REPRIVATIZES RESOCIALIZED
RESOCIALIZES RESTABILIZED RESTABILIZES REVALORIZING REVISUALIZED
REVISUALIZES REVITALIZING RHAPSODIZING RHIZOCARPOUS RHIZOCTONIAS
RHIZOPHAGOUS ROBOTIZATION ROMANIZATION ROMANTICIZED ROMANTICIZES
RURALIZATION SACCHARIZING SALINIZATION SANCTUARIZED SANCTUARIZES
SANITIZATION SATELLITIZED SATELLITIZES SATIRIZATION SCANDALIZERS
SCANDALIZING SCHEMATIZING SCHISMATIZED SCHISMATIZES SCHIZOCARPIC
SCHIZOTHYMIA SCHMALTZIEST SECTARIANIZE SECTIONALIZE SECULARIZERS
SECULARIZING SENSUALIZING SHERARDIZING SINGULARIZED SINGULARIZES
SIZEABLENESS SLEAZINESSES SLOGANIZINGS SLUGGARDIZED SLUGGARDIZES
SNAZZINESSES SOCIALIZABLE SOCIALIZINGS SOLARIZATION SOLMIZATIONS
SOLONIZATION SOMATIZATION SPANIOLIZING SPATIALIZING SPECIALIZERS
SPECIALIZING SPERMATOZOIC SPERMATOZOID SPIRITUALIZE SPLENIZATION
STABILIZATOR STANDARDIZED STANDARDIZER STANDARDIZES STERILIZABLE
STIGMATIZERS STIGMATIZING STRATEGIZING STYLIZATIONS SUBERIZATION
SUBSIDIZABLE SUBURBANIZED SUBURBANIZES SUBVOCALIZED SUBVOCALIZES
SULFADIAZINE SUMMARIZABLE SUZERAINTIES SYCOPHANTIZE SYMPATHIZERS
SYMPATHIZING SYMPTOMATIZE SYSTEMATIZED SYSTEMATIZER SYSTEMATIZES
TABULARIZING TANTALIZINGS TAUTOLOGIZED TAUTOLOGIZES TAXIDERMIZED
TAXIDERMIZES TECHNICALIZE TELEPATHIZED TELEPATHIZES TEMPORALIZED
TEMPORALIZES TETANIZATION TETRAZOLIUMS TEXTUALIZING THEATRICIZED
THEATRICIZES THEORIZATION THERMALIZING THIORIDAZINE TOTALIZATION
TOTALIZATORS TRAILBLAZERS TRAILBLAZING TRANQUILIZED TRANQUILIZER
TRANQUILIZES TRANQUILLIZE TRAUMATIZING TRIVIALIZING TROPICALIZED
TROPICALIZES TZAREVITCHES UNADVERTIZED UNAPPETIZING UNAUTHORIZED
UNCANONIZING UNCAPSIZABLE UNDRAMATIZED UNEMPHASIZED UNFEUDALIZED
UNFEUDALIZES UNFORMALIZED UNGLAMORIZED UNHUMANIZING UNIONIZATION
UNITIZATIONS UNIVERSALIZE UNMECHANIZED UNMECHANIZES UNMORALIZING
UNNATURALIZE UNPATRONIZED UNREALIZABLE UNSENSUALIZE UNSOCIALIZED
UNVERBALIZED UNVULGARIZED UNVULGARIZES URBANIZATION UTILIZATIONS
UTOPIANIZERS UTOPIANIZING VAGABONDIZED VAGABONDIZES VALORIZATION
VAPORIZATION VASCULARIZED VASCULARIZES VASECTOMIZED VASECTOMIZES
VELARIZATION VILLAINIZING VIRILIZATION VIRTUALIZING VITALIZATION
VITAMINIZING VOCALIZATION VOLATILIZING VOWELIZATION VULCANIZABLE
VULCANIZATES WARRANTIZING WEATHERIZING ZALCITABINES ZANTEDESCHIA
ZIGZAGGERIES ZILLIONAIRES ZINCOGRAPHER ZINCOGRAPHIC ZINJANTHROPI
ZOANTHARIANS ZOANTHROPIES ZOOGRAFTINGS ZOOGRAPHICAL ZOOGRAPHISTS
ZOOLOGICALLY ZOOMAGNETISM ZOOSPERMATIC ZOOSPORANGIA ZOOTECHNICAL
ZOOTHERAPIES ZOOTOMICALLY ZYGAPOPHYSIS ZYGODACTYLIC