There are 386 fifteen-letter words containing A, I, N, T and Z, https://www.bestwordlist.com/c/a/5/15letterwordswithaintz.htm ACCLIMATIZATION ACHROMATIZATION AEROSOLIZATIONS AGGRANDIZEMENTS ALCOHOLIZATIONS ALKALINIZATIONS ALLEGORIZATIONS ALPHABETIZATION ANAGRAMMATIZING ANALYZABILITIES ANESTHETIZATION ANTAGONIZATIONS ANTISEPTICIZING APOTHEGMATIZING ARTERIALIZATION ARTIFICIALIZING ATTITUDINIZINGS AUTOIONIZATIONS AUTOMATIZATIONS AUTOSCHEDIAZING AXIOMATIZATIONS AZIDOTHYMIDINES BASTARDIZATIONS BIPOLARIZATIONS BITUMINIZATIONS BOWDLERIZATIONS BUREAUCRATIZING CALENDARIZATION CANISTERIZATION CANNIBALIZATION CAPITALIZATIONS CARAMELIZATIONS CATEGORIZATIONS CATHETERIZATION CATHOLICIZATION CENTRALIZATIONS CENTRIFUGALIZED CENTRIFUGALIZES CHANNELIZATIONS CHAPTALIZATIONS CHLORITIZATIONS CINCHONIZATIONS CIRCULARIZATION CIVILIANIZATION COENZYMATICALLY COLLATERALIZING COLONIZATIONIST COMMODITIZATION COMMUNALIZATION COMPUTERIZATION CONCEPTUALIZERS CONCEPTUALIZING CONCRETIZATIONS CONNATURALIZING CONTEXTUALIZING CONVENTIONALIZE CONVEYORIZATION CORINTHIANIZING CORPORATIZATION CRIMINALIZATION CRYSTALIZATIONS CRYSTALLIZATION DECARBONIZATION DECARBURIZATION DECASUALIZATION DECHRISTIANIZED DECHRISTIANIZES DECIMALIZATIONS DECOLONIZATIONS DECOLORIZATIONS DECOLOURIZATION DECOMMUNIZATION DECONTEXTUALIZE DEFEMINIZATIONS DEGLAMORIZATION DEHUMANIZATIONS DEHYPNOTIZATION DEINDUSTRIALIZE DELOCALIZATIONS DEMAGNETIZATION DEMATERIALIZING DEMOBILIZATIONS DEMOCRATIZATION DEMONETIZATIONS DEMORALIZATIONS DEMUTUALIZATION DENATIONALIZING DENAZIFICATIONS DEPARTMENTALIZE DEPOLARIZATIONS DERIVATIZATIONS DESACRALIZATION DESALINIZATIONS DESENSITIZATION DESEXUALIZATION DESILVERIZATION DESTABILIZATION DESULFURIZATION DETRIBALIZATION DEVALORIZATIONS DEVITALIZATIONS DIAGONALIZATION DICHOTOMIZATION DIGITALIZATIONS DISNATURALIZING DISORGANIZATION DOCUMENTARIZING DOLOMITIZATIONS ELECTROLYZATION EMPYREUMATIZING ENHYPOSTATIZING ENTHRONIZATIONS ENVENOMIZATIONS EPIGRAMMATIZING EPITHELIALIZING EPITHELIZATIONS ETERNALIZATIONS ETHEREALIZATION EVANGELIZATIONS EXPERIMENTALIZE EXTEMPORIZATION EXTENSIVIZATION EXTERIORIZATION EXTERNALIZATION FAMILIARIZATION FANATICIZATIONS FEDERALIZATIONS FICTIONIZATIONS FORMULARIZATION FRACTIONALIZING FRACTIONIZATION FRATERNIZATIONS GELATINIZATIONS GENERALIZATIONS GEOMETRIZATIONS GEWURZTRAMINERS GOVERNMENTALIZE GRANGERIZATIONS GRANULITIZATION GRAPHITIZATIONS GREISENIZATIONS GUTTURALIZATION HEPARINIZATIONS HIBERNICIZATION HIERARCHIZATION HOMOGENIZATIONS HORIZONTALITIES HOSPITALIZATION HYDROGENIZATION HYPNOTIZABILITY HYPOSTASIZATION HYPOSTATIZATION ILLEGALIZATIONS IMMATERIALIZING IMMISERIZATIONS IMMOBILIZATIONS IMMORTALIZATION INCENTIVIZATION INDIGENIZATIONS INDUSTRIALIZING INFANTILIZATION INFORMATIZATION INITIALIZATIONS INORGANIZATIONS INTELLECTUALIZE INTELLIGENTZIAS INTERIORIZATION INTERNALIZATION IRRATIONALIZING ISOIMMUNIZATION JOURNALIZATIONS KERATINIZATIONS LARYNGECTOMIZED LATERALIZATIONS LEGITIMIZATIONS LEXICALIZATIONS LIBERALIZATIONS LITERALIZATIONS LYOPHILIZATIONS LYSOGENIZATIONS MACADAMIZATIONS MARGINALIZATION MASCULINIZATION MATERIALIZATION MATHEMATICIZING MATHEMATIZATION MEDICALIZATIONS MELODRAMATIZING MEMORIALIZATION METAGRABOLIZING METAGROBOLIZING METAMICTIZATION METAPHYSICIZING METROPOLITANIZE MILITARIZATIONS MINERALIZATIONS MINIATURIZATION MISSIONIZATIONS MISUTILIZATIONS MISVOCALIZATION MONGRELIZATIONS MONOPOLIZATIONS MONUMENTALIZING MUSICALIZATIONS MYLONITIZATIONS MYTHOLOGIZATION NATIONALIZATION NATURALIZATIONS NEUTRALIZATIONS NITROGENIZATION NOMINALIZATIONS NONHOSPITALIZED NONPARTIZANSHIP NUCLEARIZATIONS OCCIDENTALIZING OLIGOMERIZATION OPTIMALIZATIONS ORIENTALIZATION ORTHOGONALIZING OVERADVERTIZING OVERCENTRALIZED OVERCENTRALIZES OVERDRAMATIZING OVERUTILIZATION PALATALIZATIONS PARABOLIZATIONS PARAMETRIZATION PARASITIZATIONS PARTICULARIZING PASTEURIZATIONS PATRIALIZATIONS PATRONIZINGNESS PEDESTRIANIZING PERSONALIZATION PHONEMICIZATION PHONETICIZATION PHOSPHATIZATION PHOTOIONIZATION PHOTOZINCOGRAPH PIEZOMAGNETISMS PINEALECTOMIZED PINEALECTOMIZES PLASTICIZATIONS PLATITUDINIZERS PLATITUDINIZING POLITICIZATIONS POLYMERIZATIONS POPULARIZATIONS PRAGMATIZATIONS PRESBYTERIANIZE PRESSURIZATIONS PRIORITIZATIONS PROJECTIZATIONS PROLETARIANIZED PROLETARIANIZES PROPYLITIZATION PROSELYTIZATION PRUSSIANIZATION QUIZZIFICATIONS RADICALIZATIONS RADIOSENSITIZED RADIOSENSITIZES RATIONALIZATION REACCLIMATIZING READVERTIZEMENT REAUTHORIZATION RECANALIZATIONS RECOGNIZABILITY RECOLONIZATIONS RECONCEPTUALIZE RECONTEXTUALIZE RECRYSTALLIZING REGIONALIZATION REGULARIZATIONS REHOSPITALIZING REHUMANIZATIONS REINDUSTRIALIZE RELATIVIZATIONS REMATERIALIZING REMOBILIZATIONS REMONETIZATIONS REMORALIZATIONS RENATIONALIZING RENORMALIZATION REORGANIZATIONS REPOLARIZATIONS REPRIVATIZATION RESENSITIZATION RESOCIALIZATION RESTABILIZATION RESYSTEMATIZING RETHEORIZATIONS RETRIBALIZATION REVALORIZATIONS REVICTIMIZATION REVISUALIZATION REVITALIZATIONS ROENTGENIZATION ROMANTICIZATION RONTGENIZATIONS SACCHARIZATIONS SACERDOTALIZING SCANDALIZATIONS SCHEMATIZATIONS SCHILLERIZATION SCLEROTIZATIONS SECTIONIZATIONS SECULARIZATIONS SECURITIZATIONS SENSATIONALIZED SENSATIONALIZES SENSUALIZATIONS SENTIMENTALIZED SENTIMENTALIZES SERICITIZATIONS SHERARDIZATIONS SINGULARIZATION SOLUBILIZATIONS SPATIALIZATIONS SPECIALIZATIONS SPHEROIDIZATION STANDARDIZATION STIGMATIZATIONS STROBILIZATIONS STRUCTURALIZING SUBCATEGORIZING SUBCIVILIZATION SUBMINIATURIZED SUBMINIATURIZES SUBOPTIMIZATION SUBORGANIZATION SUBSTANTIALIZED SUBSTANTIALIZES SUBSTANTIVIZING SUBURBANIZATION SUBVOCALIZATION SULFAMETHAZINES SULPHURIZATIONS SUPERNATURALIZE SYMMETRIZATIONS SYNCHRONIZATION SYNCRETIZATIONS SYNTHESIZATIONS SYNTHETIZATIONS SYSTEMATIZATION TABULARIZATIONS TELOMERIZATIONS TESTIMONIALIZED TESTIMONIALIZES TEXTUALIZATIONS THEATRICALIZING THEOLOGIZATIONS THERMALIZATIONS TOTALITARIANIZE TRADITIONALIZED TRADITIONALIZES TRANQUILIZATION TRANQUILIZINGLY TRANSISTORIZING TRANSPARENTIZED TRANSPARENTIZES TRAUMATIZATIONS TRICHINIZATIONS TRIFLUOPERAZINE TRIVIALIZATIONS TROPICALIZATION TUBERCULIZATION UNANAESTHETIZED UNCATEGORIZABLE UNCHRISTIANIZED UNCHRISTIANIZES UNDERCAPITALIZE UNPROTESTANTIZE UNSPIRITUALIZED UNSPIRITUALIZES UTILITARIANIZED UTILITARIANIZES VASCULARIZATION VIRTUALIZATIONS VITRIOLIZATIONS VOLATILIZATIONS WEATHERIZATIONS WESTERNIZATIONS ZINCKIFICATIONS ZINJANTHROPUSES ZYGOBRANCHIATES