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