There are 642 eleven-letter words containing 2A, C, E and N, https://www.bestwordlist.com/c/a/5/11letterwordswithaacen.htm ABECEDARIAN ABERRANCIES ABRANCHIATE ABREACTIONS ABSORBANCES ABSORPTANCE ABUNDANCIES ACADEMICIAN ACAULESCENT ACCELERANDO ACCELERANTS ACCENTUALLY ACCENTUATED ACCENTUATES ACCEPTANCES ACCEPTATION ACCESSIONAL ACCIDENTALS ACCOMPANIED ACCOMPANIER ACCOMPANIES ACCORDANCES ACCOUNTABLE ACERVATIONS ACETANILIDE ACETANILIDS ACETONAEMIA ACETONEMIAS ACETONURIAS ACETYLATING ACETYLATION ACHAENOCARP ACIDANTHERA ACIERATIONS ACQUITTANCE ACRIFLAVINE ADAPTOGENIC ADJACENCIES ADJUTANCIES ADJUVANCIES ADMIRAUNCES ADMITTANCES ADVANCEMENT AERENCHYMAS AERODYNAMIC AEROMANCIES AERONAUTICS AERONOMICAL AFFECTATION AFFECTIONAL AFFIRMANCES AFFRANCHISE AIRCRAFTMEN ALCHERINGAS ALEGGEAUNCE ALKALESCENT ALLEGEANCES ALLEGIANCES ALTERCATING ALTERCATION ALTERNANCES ALYCOMPAINE AMBIVALENCE AMBIVALENCY AMENTACEOUS AMERCIAMENT AMINOACETIC ANABRANCHES ANACHARISES ANACREONTIC ANAEMICALLY ANAESTHETIC ANALEMMATIC ANAPLEROTIC ANCESTORIAL ANCESTRALLY ANCHOVETTAS ANCILLARIES ANECDOTAGES ANECDOTALLY ANECDOTICAL ANENCEPHALY ANGELICALLY ANIMALCULES ANISOCERCAL ANNUNCIATED ANNUNCIATES ANTECHAMBER ANTECHAPELS ANTHRACENES ANTHRACITES ANTHRACNOSE ANTHRACOSES ANTICATHODE ANTICIPATED ANTICIPATES ANTINUCLEAR APPARENCIES APPEACHMENT APPEARANCES APPROVANCES ARCHAEORNIS ARCHANGELIC ARCHDEACONS ARCHEGONIAL ARCHONTATES ARCTANGENTS AREFACTIONS ARRIVANCIES ARROGANCIES ASCENDANCES ASCENDANTLY ASCENSIONAL ASCERTAINED ASSEMBLANCE ASSISTANCES ASYNARTETIC ATTACHMENTS ATTENDANCES ATTRACTANCE AUTHENTICAL AUTOCHANGER AVERRUNCATE AVUNCULATES BACKCHANNEL BACKHANDERS BALANCEABLE BANCASSURER BAREBACKING BARONETICAL BEAUTICIANS BERASCALING BETACYANINS BICARBONATE BLACKHANDER BLACKSNAKES BLANCMANGES BREAKDANCED BREAKDANCER BREAKDANCES BUPIVACAINE CABBAGETOWN CACHINNATED CACHINNATES CACODAEMONS CADAVERINES CAFFEINATED CAFFEINATES CAKEWALKING CALAMANCOES CALAMANDERS CALCEAMENTA CALEFACIENT CALEFACTION CALENDARERS CALENDARING CALENDARISE CALENDARIST CALENDARIZE CALENDRICAL CALLIPYGEAN CALUMNIABLE CALUMNIATED CALUMNIATES CAMERAPHONE CAMERATIONS CAMERAWOMAN CAMERAWOMEN CAMPAIGNERS CAMPANULATE CAMPESTRIAN CANCELATION CANCELLABLE CANCELLATED CANCERATING CANCERATION CANDELABRAS CANDELABRUM CANDELILLAS CANDIDACIES CANDIDATURE CANDIDIASES CANNIBALISE CANNIBALIZE CANONICATES CANTALOUPES CANTATRICES CANTHARIDES CANTILLATED CANTILLATES CANZONETTAS CAPABLENESS CAPACITANCE CAPARISONED CAPTAINCIES CAPTAINRIES CAPTIVANCES CAPTIVAUNCE CARABINEERS CARABINEROS CARABINIERE CARABINIERI CARABINIERS CARAGEENANS CARAMELLING CARAVANEERS CARAVANETTE CARAVANNERS CARBAMIDINE CARBAPENEMS CARBONADOED CARBONADOES CARBONATITE CARBONNADES CARBONYLATE CARBYLAMINE CARDINALATE CARETAKINGS CARMAGNOLES CARMINATIVE CARNALITIES CARNALLITES CARNATIONED CARPENTARIA CARRAGEENAN CARRAGEENIN CARRAGHEENS CARTHAMINES CARTONNAGES CARUNCULATE CARYATIDEAN CASINGHEADS CATANANCHES CATARRHINES CATENACCIOS CATENATIONS CAUSEWAYING CAVALIERING CENTENARIAN CERATOPSIAN CHAETOGNATH CHAINBRAKES CHAINPLATES CHAIRMANNED CHAMAELEONS CHAMBERHAND CHAMBERLAIN CHAMBRANLES CHANTARELLE CHAPERONAGE CHARGEHANDS CHATELAINES CHATOYANCES CINNABARINE CLADOCERANS CLEANHANDED CLEPTOMANIA CLONAZEPAMS COADJACENCY COADJACENTS COADUNATIVE COAPPEARING COCAPTAINED COELACANTHS COLLAGENASE COLLECTANEA COMMANDABLE COMPAGINATE COMPANIABLE COMPEARANCE COMPEARANTS CONCATENATE CONCEALABLE CONFABULATE CONFARREATE CONFLAGRATE CONGEALABLE CONTACTABLE CONTAINABLE CONTAMINATE CONTRADANCE CONTRAYERVA COPARCENARY COVARIANCES CRANKHANDLE CRAPEHANGER CRASSAMENTA CRAUNCHABLE CREATIANISM CRUSTACEANS CYCLOALKANE DAMASCEENED DAMASCEENES DAMASCENING DANCEMAKERS DEBARCATION DECAGONALLY DECANICALLY DECANTATING DECANTATION DECARBONATE DECAUDATING DECLAIMANTS DECLAMATION DECLARATION DEFAECATING DEFAECATION DEFALCATING DEFALCATION DEFEASANCED DEFEASANCES DEMARCATING DEMARCATION DENDRACHATE DERACINATED DERACINATES DIAMAGNETIC DIENCEPHALA DILATANCIES DISADVANCED DISADVANCES DISAVAUNCED DISAVAUNCES DODECAGONAL EDUCATIONAL EGOMANIACAL EJACULATING EJACULATION EJECTAMENTA ELECAMPANES EMACIATIONS EMANCIPATED EMANCIPATES EMANCIPATOR EMBARCATION EMPARLAUNCE ENCAPSULATE ENCARNALISE ENCARNALIZE ENCEPHALOMA ENDOCARDIAC ENDOCARDIAL ENDOCRANIAL ENGLACIALLY ENGRAMMATIC ENIGMATICAL ENTRANCEWAY EPANALEPTIC EPENCEPHALA EQUIBALANCE ERADICATING ERADICATION ERGOMANIACS EROTOMANIAC ESCALATIONS ESCALLONIAS EVACUATIONS EVANGELICAL EXCARNATING EXCARNATION EXCAVATIONS EXCLAMATION EXTRACTANTS FACEPALMING FACEPLANTED FACTUALNESS FAINEANCIES FANATICISED FANATICISES FANATICIZED FANATICIZES FARINACEOUS FASCINATIVE FIANCAILLES FLAGRANCIES FLAMBOYANCE FLANCONADES FORBEARANCE FRACTIONATE FRAGRANCIES FRICANDEAUS FRICANDEAUX GALLINACEAN GASCONADERS GEARCHANGES GNATCATCHER GUBERNACULA GYNAECOMAST HABITAUNCES HACIENDADOS HAEMATINICS HAEMOCONIAS HAEMOCYANIN HALLUCINATE HANDCRAFTED HANDICAPPED HANDICAPPER HEMICRANIAS HEXADECANES HIBERNACULA HYPERCAPNIA HYRACOIDEAN IMPARLANCES IMPLACENTAL INACTIVATED INACTIVATES INCAPSULATE INCARCERATE INCARDINATE INCARNADINE INCARVILLEA INCATENATED INCATENATES INCRASSATED INCRASSATES INCREASABLE INDICATABLE INESCAPABLE INESCAPABLY INHABITANCE INTERACTANT INTERCALARY INTERCALATE INTERFACIAL INTERRACIAL INTRACTABLE INTRATHECAL INVARIANCES IPECACUANHA IRRADIANCES ISOCYANATES KINEMATICAL KITCHENALIA LABEFACTION LACEMAKINGS LACERATIONS LACERTILIAN LANCEOLATED LANDSCAPERS LATITANCIES LAUNCEGAYES MACCARONIES MACERANDUBA MACERATIONS MACHINEABLE MACROFAUNAE MADEFACTION MAGNETICIAN MAINTENANCE MALEFACTION MALFEASANCE MALIGNANCES MANUFACTURE MASCARPONES MEATPACKING MECHANICALS MECHANICIAN MEGALOMANIC MELANCHOLIA MELOMANIACS MERCHANTMAN MESALLIANCE METAVANADIC MICROFAUNAE MICROMANAGE MISALLIANCE MISBALANCED MISBALANCES MISCELLANEA MISFEASANCE NAMAYCUSHES NANOMACHINE NATTERJACKS NAVICULARES NECESSARIAN NECROMANIAC NECROMANIAS NEMATICIDAL NEMATOCIDAL NIACINAMIDE NONACADEMIC NONADJACENT NONATTACHED NONCALLABLE NONCHALANCE NONFEASANCE NUDICAUDATE OCEANARIUMS ONAGRACEOUS OUANANICHES OUTBALANCED OUTBALANCES OVERBALANCE PACEMAKINGS PANCREATINS PANDEMONIAC PANEGYRICAL PANICULATED PARACASEINS PARAGENETIC PARANEPHRIC PARASCENDER PARASCENIUM PARASCIENCE PARASELENIC PARCENARIES PARENCHYMAL PARENCHYMAS PARISCHANES PEACEMAKING PEDANTOCRAT PENTACTINAL PENTADACTYL PERICARDIAN PERICRANIAL PERMANGANIC PESCATARIAN PESCETARIAN PHAENOGAMIC PHAGEDAENIC PHENACAINES PHLYCTAENAE PINACOTHECA PISCIFAUNAE PLANTSCAPES PLASMAGENIC PNEUMATICAL PREACQUAINT PULSATANCES RACEMATIONS RACEWALKING RACTOPAMINE RADICALNESS RANSHACKLED RANSHACKLES RAREFACTION RATIOCINATE REACQUAINTS REACTIONARY REACTUATING READVANCING REASSURANCE REATTACHING REATTACKING REBALANCING RECANALISED RECANALISES RECANALIZED RECANALIZES RECANTATION RECLAIMANTS RECLAMATION RECTANGULAR REDACTIONAL REINCARNATE RELANDSCAPE RENAISSANCE REPACKAGING RETARDANCES RETINACULAR REVACCINATE RHAMNACEOUS RURIDECANAL SACCHARINES SACRAMENTAL SACRAMENTED SANCTUARIES SANCTUARISE SANCTUARIZE SANDCASTLES SAPONACEOUS SARCOPENIAS SARRACENIAS SCAMMONIATE SCANDALISED SCANDALISER SCANDALISES SCANDALIZED SCANDALIZER SCANDALIZES SCARABAEANS SEACHANGERS SEANNACHIES SNAPHAUNCES SOLANACEOUS SPACEFARING SPACEPLANES STAGNANCIES STAUNCHABLE STENOCARDIA SUBALLIANCE SUPERNACULA TABEFACTION TABERNACLED TABERNACLES TACHYPNOEAS TAENIACIDES TECHNOMANIA TENTACULATE TETANICALLY TETRACAINES TETRACTINAL THEOMANIACS THIOCYANATE TRACHEARIAN TRANSCALENT TRANSLOCATE TRANSMANCHE UNACCUSABLE UNALLOCATED UNBARRICADE UNCASTRATED UNCATALOGED UNCATCHABLE UNCOMATABLE UNDANCEABLE UNESCAPABLE UNESCAPABLY UNEXCAVATED UNGLACIATED UNMATCHABLE UNPEACEABLE UNPLACEABLE UNREACHABLE UNREACHABLY UNSECTARIAN UNTEACHABLE UNTRACEABLE UNTRACTABLE UNWATCHABLE VACATIONERS VATICINATED VATICINATES VENATICALLY VERNACULARS VICARIANCES VULCANISATE VULCANIZATE WAPENSCHAWS WAPPENSCHAW WARRANDICES ZALCITABINE