There are 704 thirteen-letter words containing A, C, 2N and T, https://www.bestwordlist.com/c/a/5/13letterwordswithacnnt.htm
ACCENTUATIONS ACCEPTINGNESS ACCOMPANIMENT ACCOUNTANCIES ACETAMINOPHEN
ACQUAINTANCES ACQUITTANCING ACTINOURANIUM ACUPUNCTURING AMNIOCENTESES
AMNIOCENTESIS ANACHRONISTIC ANCIENTNESSES ANDROCENTRISM ANGLICISATION
ANGLICIZATION ANNOUNCEMENTS ANNUNCIATIONS ANTHELMINTHIC ANTHELMINTICS
ANTHRACYCLINE ANTHROPOGENIC ANTICHRISTIAN ANTICIPATIONS ANTICLINORIUM
ANTICOAGULANT ANTICOLLISION ANTICOLONIALS ANTICOMMUNISM ANTICOMMUNIST
ANTICORROSION ANTIDESICCANT ANTIELECTRONS ANTIGENICALLY ANTIHIJACKING
ANTIMECHANIST ANTIMNEMONICS ANTINARCOTICS ANTINEPHRITIC ANTINOMICALLY
ANTIOBSCENITY ANTIRECESSION ANTIREJECTION ANTIROMANTICS APPERTAINANCE
APPURTENANCES ASCENSIONISTS ASCERTAINMENT ASTRINGENCIES AUCTIONEERING
AUTOINFECTION AVERRUNCATING AVERRUNCATION BENEDICTIONAL BENEFICENTIAL
BENEFICIATING BENEFICIATION BICENTENARIES BICENTENNIALS BICONDITIONAL
BOTANOMANCIES CABINETMAKING CACHINNATIONS CALUMNIATIONS CANALISATIONS
CANALIZATIONS CANCELLATIONS CANISTERISING CANISTERIZING CANNIBALISTIC
CANONISATIONS CANONIZATIONS CANTHAXANTHIN CANTILEVERING CANTILLATIONS
CANTONISATION CANTONIZATION CARBONISATION CARBONIZATION CARBONYLATING
CARBONYLATION CARNIFICATION CATAMOUNTAINS CENTRICALNESS CENTURIATIONS
CHANNELOPATHY CHARLESTONING CHLORINATIONS CHONDROSTIANS CLANDESTINELY
CLANDESTINITY COCAINISATION COCAINIZATION CODECLINATION COENENCHYMATA
COGENERATIONS COGNATENESSES COGNOMINATING COGNOMINATION COINHERITANCE
COLONISATIONS COLONIZATIONS COLUMNIATIONS COMANAGEMENTS COMBINATIONAL
COMMENDATIONS COMMENTATIONS COMMUNICATING COMMUNICATION COMMUNISATION
COMMUNITARIAN COMMUNIZATION COMPAGINATING COMPAGINATION COMPENSATIONS
COMPLANATIONS COMPLIANTNESS CONCATENATING CONCATENATION CONCELEBRANTS
CONCENTRATING CONCENTRATION CONCENTRATIVE CONCENTRATORS CONCERTINAING
CONCILIATIONS CONCLAMATIONS CONCOMITANCES CONCOMITANTLY CONCREMATIONS
CONCRETIONARY CONDEMNATIONS CONDENSATIONS CONDITIONABLE CONDITIONALLY
CONDITIONATED CONDITIONATES CONFABULATING CONFABULATION CONFARREATION
CONFECTIONARY CONFEDERATING CONFEDERATION CONFIGURATING CONFIGURATION
CONFIRMATIONS CONFISCATIONS CONFLAGRATING CONFLAGRATION CONFORMATIONS
CONFRATERNITY CONFRONTATION CONGLOBATIONS CONGLUTINATED CONGLUTINATES
CONGLUTINATOR CONGRATULANTS CONGREGATIONS CONJUGATENESS CONJUGATIONAL
CONJUNCTIONAL CONNATENESSES CONNATURALISE CONNATURALITY CONNATURALIZE
CONNOTATIONAL CONNOTATIVELY CONNUMERATING CONNUMERATION CONSANGUINITY
CONSECRATIONS CONSECTANEOUS CONSENTANEITY CONSENTANEOUS CONSEQUENTIAL
CONSERVATIONS CONSIDERATION CONSIGNATIONS CONSOCIATIONS CONSOLIDATING
CONSOLIDATION CONSONANTALLY CONSPIRATIONS CONSPURCATION CONSTATATIONS
CONSTELLATING CONSTELLATION CONSTERNATING CONSTERNATION CONSTIPATIONS
CONSTRAINABLE CONSTRAINEDLY CONSTUPRATING CONSTUPRATION CONSULTANCIES
CONSULTATIONS CONSUMMATIONS CONTABESCENCE CONTAGIONISTS CONTAINERISED
CONTAINERISES CONTAINERIZED CONTAINERIZES CONTAINERLESS CONTAINERPORT
CONTAINERSHIP CONTAMINATING CONTAMINATION CONTAMINATIVE CONTAMINATORS
CONTEMPLATING CONTEMPLATION CONTENTATIONS CONTERMINALLY CONTESTATIONS
CONTIGNATIONS CONTINENTALLY CONTINUALNESS CONTINUATIONS CONTINUATIVES
CONTORTIONATE CONTRABANDISM CONTRABANDIST CONTRABASSOON CONTRACEPTION
CONTRACTIONAL CONTRADICTING CONTRADICTION CONTRAGESTION CONTRAPUNTIST
CONTRARIANISM CONTRASTINGLY CONTRATERRENE CONTRAVENTION CONTRISTATION
CONVALESCENTS CONVENTIONALS CONVENTIONARY CONVERSATIONS CONVERTAPLANE
CONVERTIPLANE CONVERTOPLANE CONVOCATIONAL CONVOLUTIONAL COORDINATIONS
CORINTHIANISE CORINTHIANIZE CORNIFICATION COTRANSDUCING COUNTENANCERS
COUNTENANCING COUNTERACTING COUNTERACTION COUNTERAGENTS COUNTERCHANGE
COUNTERDEMAND COUNTERMANDED COUNTERSTAINS CREDENTIALING CRENELLATIONS
CRYOPLANKTONS CUTINISATIONS CUTINIZATIONS CYBERNETICIAN CYCLOPENTANES
DAMNIFICATION DANDIFICATION DECARBONATING DECARBONATION DECLINATIONAL
DECONCENTRATE DECONGESTANTS DECONTAMINANT DECONTAMINATE DENSIFICATION
DENTICULATION DENUNCIATIONS DERACINATIONS DESANCTIFYING DETRUNCATIONS
DIAGNOSTICIAN DIFUNCTIONALS DIGNIFICATION DISCIPLINANTS DISCRIMINANTS
DISENCHANTERS DISENCHANTING DISENTRANCING DISFUNCTIONAL DISINFECTANTS
DOCTRINARIANS DOCUMENTARIAN DOCUMENTATION DYSFUNCTIONAL ECONOMISATION
ECONOMIZATION EMANCIPATIONS EMBRANCHMENTS ENANTIODROMIC ENANTIOTROPIC
ENCAPSULATING ENCAPSULATION ENCHANTRESSES ENCHONDROMATA ENCOMPASSMENT
ENCOURAGEMENT ENCROACHMENTS ENCRUSTATIONS ENCULTURATING ENCULTURATION
ENTERCHAUNGED ENTERCHAUNGES ENTOMOSTRACAN ENTRANCEMENTS ENUNCIATIVELY
FANATICALNESS FASCINATINGLY FIANCHETTOING FINANCIALISTS FONCTIONNAIRE
FRACTIONATING FRACTIONATION FRACTIONISING FRACTIONIZING FRANCHISEMENT
FRANCISATIONS FRANCIZATIONS FRANTICNESSES FUNCTIONALISM FUNCTIONALIST
FUNCTIONALITY FUNCTIONARIES FUNCTIONATING GENETHLIACONS GENICULATIONS
GENTIANACEOUS GLYCERINATING GNATHONICALLY HALLUCINATING HALLUCINATION
HANDCRAFTSMAN HANDCRAFTSMEN HAPPENSTANCES HYPNOANALYTIC IDENTICALNESS
IMMANENTISTIC IMMUNIFACIENT INABSTINENCES INACTIVATIONS INADVERTENCES
INAPPETENCIES INCANDESCENTS INCANTATIONAL INCAPACITANTS INCAPSULATING
INCAPSULATION INCARCERATING INCARCERATION INCARDINATING INCARDINATION
INCARNATIONAL INCATENATIONS INCERTAINTIES INCESSANTNESS INCINERATIONS
INCLINATIONAL INCLINATORIUM INCOGITANCIES INCOMPLIANTLY INCONSIDERATE
INCONSONANTLY INCONSTANCIES INCONSTRUABLE INCONTESTABLE INCONTESTABLY
INCORONATIONS INCORPORATING INCORPORATION INCRASSATIONS INCREMENTALLY
INCRIMINATING INCRIMINATION INCRIMINATORS INCRIMINATORY INCRUSTATIONS
INCUNABULISTS INDETERMINACY INDOCTRINATED INDOCTRINATES INDOCTRINATOR
INDOMETHACINS INDUPLICATION INEXACTNESSES INEXPECTATION INFORMATICIAN
INHABITANCIES INHARMONICITY INOCCUPATIONS INOSCULATIONS INSCRIPTIONAL
INSIGNIFICANT INSTINCTUALLY INSTRUCTIONAL INTEMPERANCES INTERACTIONAL
INTERAGENCIES INTERBRANCHES INTERCALATING INTERCALATION INTERCHAINING
INTERCHANGERS INTERCHANGING INTERCHANNELS INTERCOLONIAL INTERCOLUMNAR
INTERCOMMUNAL INTERLACEMENT INTERLOCATION INTEROSCULANT INTERPANDEMIC
INTOXICATIONS INTRANSIGENCE INTRANSIGENCY INTRICATENESS INTRINSICALLY
LICENTIATIONS LIEUTENANCIES LIGNIFICATION LINGUISTICIAN MACRONUTRIENT
MAGNIFICATION MAGNIFICENTLY MAINTENANCING MALFUNCTIONED MANNERISTICAL
MANUFACTURING MECHANISATION MECHANIZATION MEDICAMENTING METACOGNITION
METENCEPHALON MICRONISATION MICRONIZATION MICROPLANKTON MINIFICATIONS
MISCAPTIONING MISCEGENATING MISCEGENATION MONONUCLEATED MONOTONICALLY
MOUNTENAUNCES MULTICHANNELS MUNDIFICATION NANOCOMPOSITE NANOPARTICLES
NANOSTRUCTURE NARCOTISATION NARCOTIZATION NARROWCASTING NATIONALISTIC
NAZIFICATIONS NECESSITARIAN NECESSITATING NECESSITATION NECROMANTICAL
NEURASTHENIAC NEURASTHENICS NEUROANATOMIC NICOTINAMIDES NIDIFICATIONS
NIGHTWATCHMAN NIGHTWATCHMEN NITRIFICATION NOCTIVAGATION NOMENCLATURAL
NOMENCLATURES NONACCEPTANCE NONACCIDENTAL NONACCREDITED NONAESTHETICS
NONALPHABETIC NONANALYTICAL NONANATOMICAL NONANTIBIOTIC NONARCHITECTS
NONASSOCIATED NONATTACHMENT NONATTENDANCE NONBROADCASTS NONCANDIDATES
NONCAPITALIST NONCHARACTERS NONCHAUVINIST NONCOLLEGIATE NONCOLOURFAST
NONCOMBATANTS NONCOMMITTALS NONCOMPATIBLE NONCONCEPTUAL NONCONJUGATED
NONCONSTANTLY NONCONTAGIOUS NONCOOPERATOR NONCREATIVITY NONCULTIVATED
NONCUMULATIVE NONDEMOCRATIC NONDETACHABLE NONDIPLOMATIC NONEDUCATIONS
NONELASTICITY NONELECTRICAL NONFUNCTIONAL NONHAEMOLYTIC NONHISTORICAL
NONHYSTERICAL NONINDICTABLE NONINTERLACED NONINTOXICANT NONMYSTICALLY
NONPARAMETRIC NONPATHOGENIC NONPOLITICIAN NONPRACTICING NONPRACTISING
NONRESISTANCE NONRETRACTILE NONSECTARIANS NONSOCIALISTS NONSPECIALIST
NONSTRUCTURAL NONSYSTEMATIC NONTHEATRICAL NONVOCATIONAL NOTIFICATIONS
NOVOCENTENARY NULLIFICATION OCTINGENARIES OCTOCENTENARY OCTOGENARIANS
ONOMASTICIANS ONTOGENICALLY ORGANOGENETIC ORNITHISCHIAN ORNITHOMANTIC
OUTDISTANCING PANCYTOPENIAS PANDICULATION PANIFICATIONS PANTECHNICONS
PARTHENOGENIC PATHOGNOMONIC PEDANTICISING PEDANTICIZING PEDUNCULATION
PENICILLATION PENTACRINOIDS PENTAVALENCES PERNOCTATIONS PHOTOSCANNING
PHTHALOCYANIN PHYCOXANTHINS PLACENTATIONS PLASTOCYANINS PLATINOCYANIC
PONTIFICATING PONTIFICATION PORNIFICATION PRECAUTIONING PRECONISATION
PRECONIZATION PRONUNCIATION PUNCTULATIONS PUNCTURATIONS QUANTIVALENCE
QUINCENTENARY RACONTEURINGS RATIOCINATING RATIOCINATION REACQUAINTING
RECOMBINATION RECONCENTRATE RECONTAMINATE RECRIMINATING RECRIMINATION
REINCARNATING REINCARNATION REINOCULATING REINOCULATION REMONSTRANCES
RENUNCIATIONS REPUNCTUATING REPUNCTUATION REUNIFICATION REVACCINATING
REVACCINATION REVENDICATING REVENDICATION REVINDICATING REVINDICATION
ROMANTICISING ROMANTICIZING SANCTIFYINGLY SANCTIMONIOUS SANCTUARISING
SANCTUARIZING SATANICALNESS SCENARISATION SCENARIZATION SCINTILLANTLY
SCINTILLATING SCINTILLATION SCINTILLISCAN SCINTISCANNER SEMICONSONANT
SHORTCHANGING SIGNIFICANTLY SIGNIFICATION SOMNIFACIENTS SOUNDTRACKING
STAUNCHNESSES STICKHANDLING SUBINDICATING SUBINDICATION SYNTACTICIANS
TECHNICALNESS TECHNOMANIACS TECHNOPOLITAN TELENCEPHALON TENACIOUSNESS
TERCENTENNIAL TOBACCANALIAN TRANSACTINIDE TRANSACTIONAL TRANSATLANTIC
TRANSCENDENCE TRANSCENDENCY TRANSCENDENTS TRANSCRIPTION TRANSDUCTANTS
TRANSDUCTIONS TRANSFECTIONS TRANSFERENCES TRANSHUMANCES TRANSILIENCES
TRANSLOCATING TRANSLOCATION TRANSLUCENCES TRANSLUCENTLY TRANSMITTANCE
TRANSMITTANCY TRANSPARENCES TRANSPIERCING TRANSPORTANCE TRIAMCINOLONE
TRICENTENNIAL UNACCENTUATED UNACCEPTANCES UNACCOUNTABLE UNACCOUNTABLY
UNACQUAINTING UNANTICIPATED UNASCERTAINED UNCALCULATING UNCERTAINNESS
UNCERTAINTIES UNCHLORINATED UNCHRISTIANED UNCHRISTIANLY UNCOMPENSATED
UNCOMPLAISANT UNCONDITIONAL UNCONSECRATED UNCONSECRATES UNCONSTRAINED
UNCONSTRAINTS UNCONSUMMATED UNCONTAINABLE UNCONTESTABLE UNCOORDINATED
UNCREATEDNESS UNDERCOATINGS UNDERREACTING UNDERREACTION UNDISTRACTING
UNDOCTRINAIRE UNEXCEPTIONAL UNIMPORTANCES UNPUNCTUALITY UNREPENTANCES
UNSANCTIFYING UNSTAUNCHABLE UNTACTFULNESS VACATIONLANDS VATICINATIONS
VINIFICATIONS VOLCANISATION VOLCANIZATION VULCANISATION VULCANIZATION
WAINSCOTTINGS ZINCIFICATION ZINKIFICATION ZOOPLANKTONIC