There are 531 thirteen-letter words containing A, C and 3I, https://www.bestwordlist.com/c/a/5/13letterwordswithaciii.htm ACCEPTIVITIES ACCESSIBILITY ACCLIMATISING ACCLIMATIZING ACETIFICATION ACIDIFICATION ACIDIMETRICAL ACQUIRABILITY ACQUISITIONAL ACQUISITIVELY ACTINOBACILLI ADIAPHORISTIC AERIFICATIONS AFFECTIVITIES AHISTORICISMS AILOUROPHILIC AMICABILITIES AMINOACIDURIA AMPLIFICATION ANALYTICITIES ANGLICISATION ANGLICIZATION ANTIARTHRITIC ANTIBALLISTIC ANTICHRISTIAN ANTICIPATIONS ANTICLIMACTIC ANTICLINORIUM ANTICOLLISION ANTIDIABETICS ANTIDIURETICS ANTIEPILEPTIC ANTIHIJACKING ANTIMICROBIAL ANTINEPHRITIC ANTIPARASITIC ANTIPERIODICS ANTIPESTICIDE ANTIPOLITICAL ANTIPRURITICS ANTIRACHITICS ANTISEPTICISE ANTISEPTICISM ANTISEPTICIZE ANTISOCIALISM ANTISOCIALIST ANTISOCIALITY APOLITICALITY APPLICABILITY ARABICISATION ARABICIZATION ARACHNOIDITIS ARITHMETICIAN AROMATICITIES ARTIFICIALISE ARTIFICIALITY ARTIFICIALIZE ASSOCIABILITY ASSOCIATIVITY ATYPICALITIES BASIFICATIONS BEATIFICATION BEHAVIORISTIC BENEFICIARIES BENEFICIATING BENEFICIATION BIBLIOGRAPHIC BIBLIOLOGICAL BIBLIOMANCIES BIBLIOMANIACS BIBLIOPOLICAL BICONCAVITIES BICONDITIONAL BIDIRECTIONAL BIMETALLISTIC BIOACTIVITIES BIOINFORMATIC BIOMETRICIANS BIOPESTICIDAL BIOSTATISTICS CALCIFICATION CANISTERISING CANISTERIZING CANNIBALISING CANNIBALISTIC CANNIBALIZING CAPILLARITIES CAPRIFICATION CARDINALITIAL CARDINALITIES CARNIFICATION CASTABILITIES CATHOLICISING CATHOLICITIES CATHOLICIZING CAUSABILITIES CERTIFICATING CERTIFICATION CHICKABIDDIES CHIEFTAINCIES CHIEFTAINRIES CHIEFTAINSHIP CHYLIFICATION CHYMIFICATION CICATRISATION CICATRIZATION CIRCULARISING CIRCULARITIES CIRCULARIZING CITIFICATIONS CITYFICATIONS CIVILIANISING CIVILIANIZING CIVILISATIONS CIVILIZATIONS CLARIFICATION CLINOPINACOID CLINOPINAKOID CLIOMETRICIAN CLUBABILITIES COALIFICATION COALITIONISMS COALITIONISTS COCAINISATION COCAINIZATION CODIFIABILITY CODIFICATIONS COILABILITIES COLINEARITIES COLONIALISING COLONIALISTIC COLONIALIZING COMBINABILITY COMPATIBILITY CONCILIATIONS CONSIMILARITY CONVIVIALISTS CORINTHIANISE CORINTHIANIZE CORNIFICATION CREATIONISTIC CREDITABILITY CRIMINALISING CRIMINALITIES CRIMINALIZING CRITICALITIES CULPABILITIES CULTIVABILITY CUTINISATIONS CUTINIZATIONS CYCLICALITIES DAMNIFICATION DANDIFICATION DECEIVABILITY DECRIMINALISE DECRIMINALIZE DELIRIFACIENT DENSIFICATION DERACIALISING DERACIALIZING DESPICABILITY DIACHRONISTIC DIACRITICALLY DIAGNOSTICIAN DIALECTICIANS DIALECTICISMS DIALOGISTICAL DIATOMICITIES DIGNIFICATION DIJUDICATIONS DILUCIDATIONS DIORISTICALLY DISCIPLINABLE DISCIPLINANTS DISCRIMINABLE DISCRIMINABLY DISCRIMINANTS DISCRIMINATED DISCRIMINATES DISCRIMINATOR DISENCHAINING DISINTOXICATE DISINTRICATED DISINTRICATES DISSOCIALISED DISSOCIALISES DISSOCIALIZED DISSOCIALIZES DISSOCIATIONS DIVARICATIONS DIVELLICATING DOCTRINAIRISM DOMICILIATING DOMICILIATION DOSIMETRICIAN DULCIFICATION DUPLICABILITY EDUCABILITIES EROTICISATION EROTICIZATION EUDAIMONISTIC EUSOCIALITIES FACILITATIONS FAIRNITICKLES FALSIFICATION FARCICALITIES FELICITATIONS FICTIONALISED FICTIONALISES FICTIONALIZED FICTIONALIZES FIDEICOMMISSA FINANCIALISTS FORTIFICATION FRACTIONISING FRACTIONIZING GALLICISATION GALLICIZATION GAMIFICATIONS GASIFICATIONS GEOPOLITICIAN GERIATRICIANS GILRAVITCHING GLORIFICATION GRANODIORITIC GRATIFICATION HEMIPARASITIC HIERARCHISING HIERARCHIZING HISPANICISING HISPANICIZING HISTAMINERGIC HORRIFICATION HUMIFICATIONS HYPOACIDITIES IATROGENICITY ICONOMATICISM IDIOMATICALLY IDIOMATICNESS IDIOPLASMATIC IDIOSYNCRATIC IDIOTICALNESS IMAGISTICALLY IMBECILICALLY IMMANENTISTIC IMMUNIFACIENT IMPECCABILITY IMPERIALISTIC IMPLACABILITY IMPLICATIONAL IMPLICATIVELY IMPOLITICALLY IMPREDICATIVE INACTIVATIONS INCARDINATING INCARDINATION INCARNADINING INCENDIARISMS INCERTAINTIES INCINERATIONS INCLINATIONAL INCLINATORIUM INCOGITANCIES INCRIMINATING INCRIMINATION INCRIMINATORS INCRIMINATORY INCULPABILITY INDISSOCIABLE INDISSOCIABLY INDUPLICATION INEDUCABILITY INEFFICACIOUS INFORMATICIAN INFRASPECIFIC INHABITANCIES INHARMONICITY INIMICALITIES INOCULABILITY INSCRIPTIONAL INSIGNIFICANT INSOCIABILITY INTERACTIVITY INTERCHAINING INTOXICATIONS INTRASPECIFIC INTRINSICALLY ITALICISATION ITALICIZATION JELLIFICATION JOLLIFICATION JUSTICIALISMS JUSTICIARSHIP JUSTIFICATION JUSTIFICATIVE LICENTIATIONS LIGNIFICATION LINGUISTICIAN LIQUIFACTIONS LITHIFICATION MACHINABILITY MAGNIFICATION MASCULINISING MASCULINITIES MASCULINIZING MASSIFICATION MATERIALISTIC MEDIEVALISTIC MELLIFICATION METRIFICATION MICROCLIMATIC MICROFILARIAE MICROFILARIAL MICROFILARIAS MICROGRANITIC MICRONISATION MICRONIZATION MINIATURISTIC MINIFICATIONS MISCAPTIONING MISCLASSIFIED MISCLASSIFIES MODIFICATIONS MOLLIFICATION MORTIFICATION MUMMIFICATION MUNDIFICATION MUNDIFICATIVE MUNICIPALISED MUNICIPALISES MUNICIPALISMS MUNICIPALISTS MUNICIPALIZED MUNICIPALIZES MUSICIANLIEST MUSICIANSHIPS MYSTIFICATION MYTHICISATION MYTHICIZATION NATIONALISTIC NAZIFICATIONS NICOTINAMIDES NIDIFICATIONS NITRIFICATION NONANTIBIOTIC NONPOLITICIAN NOTICEABILITY NOTIFICATIONS NULLIFICATION OFFICIALITIES ORNITHISCHIAN OSSIFICATIONS PACIFICATIONS PACKABILITIES PAEDIATRICIAN PALIFICATIONS PALMIFICATION PANIFICATIONS PARASITICIDAL PARASITICIDES PARTICIPATING PARTICIPATION PARTICIPATIVE PARTICIPIALLY PATRISTICISMS PECCABILITIES PECULIARISING PECULIARITIES PECULIARIZING PEDANTICISING PEDANTICIZING PEDIATRICIANS PENICILLAMINE PENICILLATION PENICILLINASE PERICLITATING PERIODICALIST PERTINACITIES PERVICACITIES PESSIMISTICAL PETRIFICATION PHYSICALISTIC PHYSICALITIES PHYSICALIZING PHYSICIANCIES PHYSICIANSHIP PIACULARITIES PIANISTICALLY PICTORIALISED PICTORIALISES PICTORIALISMS PICTORIALISTS PICTORIALIZED PICTORIALIZES PICTURISATION PICTURIZATION PIETISTICALLY PLACABILITIES PLEBIFICATION POLITICALISED POLITICALISES POLITICALIZED POLITICALIZES POLLICITATION PONTIFICALITY PONTIFICATING PONTIFICATION PORNIFICATION PRECIPITATING PRECIPITATION PRECIPITATIVE PRECISIANISMS PRECISIANISTS PREDICABILITY PRINCIPALSHIP PROBABILISTIC PROLIFICACIES PROLIFICATION PROVINCIALISE PROVINCIALISM PROVINCIALIST PROVINCIALITY PROVINCIALIZE PURIFICATIONS PUTRIFICATION QUADRICIPITAL QUALIFICATION QUALIFICATIVE QUASIPERIODIC RADIOACTIVITY RADIOBIOLOGIC RADIOISOTOPIC RADIOPACITIES RAMIFICATIONS RATIFICATIONS RATIOCINATING RATIOCINATION RATIOCINATIVE RATIONALISTIC REACQUISITION RECEIVABILITY RECITATIONIST RECRIMINATING RECRIMINATION RECRIMINATIVE RECTIFICATION REGIONALISTIC REPLICABILITY RESOCIALISING RESOCIALIZING REUNIFICATION REVINDICATING REVINDICATION ROMANTICISING ROMANTICIZING SACRIFICIALLY SALIFICATIONS SCALABILITIES SCARIFICATION SCHISMATISING SCHISMATIZING SCINTIGRAPHIC SCINTILLATING SCINTILLATION SCINTILLISCAN SCORIFICATION SEMEIOTICIANS SEMIEMPIRICAL SEMIOFFICIALS SEMIPARASITIC SEMIPOLITICAL SIGNIFICANCES SIGNIFICANTLY SIGNIFICATION SIGNIFICATIVE SIGNIFICATORS SIGNIFICATORY SIMPLIFICATOR SOCIABILITIES SOCIALISATION SOCIALIZATION SOLICITATIONS SPECIFICATING SPECIFICATION SPECIFICATIVE SPIFFLICATING SPIFFLICATION SPIFLICATIONS STATISTICIANS SUBINDICATING SUBINDICATION SUBINDICATIVE SYLLABICITIES SYNDICALISTIC TACITURNITIES TARIFFICATION TESTIFICATION THEATRICISING THEATRICIZING THURIFICATION TRIPLICATIONS TRITHEISTICAL TROPICALISING TROPICALITIES TROPICALIZING TYPIFICATIONS UGLIFICATIONS UMBILICATIONS UNSOCIABILITY UNSOCIALITIES VATICINATIONS VERBIFICATION VERIFICATIONS VERSIFICATION VERTICALITIES VICTIMISATION VICTIMIZATION VILIFICATIONS VINDICABILITY VINDICATORILY VINIFICATIONS VITRIFACTIONS VITRIFICATION VIVIFICATIONS VIVISECTIONAL VOLCANICITIES VULCANICITIES YUPPIFICATION ZINCIFICATION ZINKIFICATION ZOMBIFICATION