There are 636 thirteen-letter words containing A, C, E and 2R, https://www.bestwordlist.com/c/a/5/13letterwordswithacerr.htm ACCELEROMETER ACRYLONITRILE ADRENOCEPTORS ADRENOCHROMES AEROSTRUCTURE AIRCRAFTWOMEN ANCHORPERSONS ANDROCENTRISM ANTICORPORATE ANTICORROSIVE APPROPRIACIES ARAEOMETRICAL ARBITRATRICES ARBORESCENCES ARBORICULTURE ARCHAEOMETRIC ARCHAEOPTERYX ARCHAEORNISES ARCHEOMETRIES ARCHIMANDRITE ARCHITECTURAL ARCHITECTURES ARISTOCRACIES ARTHRECTOMIES ARTHROSCOPIES ASTROMETRICAL AUTOCORRECTED AVERRUNCATING AVERRUNCATION AVERRUNCATORS BACKGROUNDERS BACKSCRATCHER BARORECEPTORS BLACKBERRYING BLADDERWRACKS BRACHYPTERISM BRACHYPTEROUS BRACHYTHERAPY BRAINCHILDREN BREADCRUMBING BREECHLOADERS BUREAUCRACIES BUREAUCRATESE BUREAUCRATISE BUREAUCRATISM BUREAUCRATIST BUREAUCRATIZE CACKERMANDERS CACKLEBERRIES CALCARIFEROUS CALLIGRAPHERS CALORIMETRIES CAMERAPERSONS CANDLEBERRIES CARAVANSARIES CARAVANSERAIS CARBOHYDRASES CARBOHYDRATES CARBONIFEROUS CARDBOARDIEST CARDIOGRAPHER CARDIOVERSION CARDIOVERTERS CARILLONNEURS CARPETBAGGERS CARPETBAGGERY CARPETMONGERS CARRAGHEENANS CARRAGHEENINS CARRIWITCHETS CARTOGRAPHERS CARTOGRAPHIES CARYOPTERISES CATERCORNERED CERAUNOGRAPHS CEREBROSPINAL CEREBROTONIAS CEROGRAPHICAL CEROGRAPHISTS CERTIFICATORY CERVICOGRAPHY CHALCOGRAPHER CHARACTERISED CHARACTERISER CHARACTERISES CHARACTERISMS CHARACTERIZED CHARACTERIZER CHARACTERIZES CHARACTERLESS CHARIOTEERING CHARLATANRIES CHARTOGRAPHER CHECKERBOARDS CHEIROMANCERS CHEQUERBOARDS CHILDRENSWEAR CHIROGRAPHERS CHIROGRAPHIES CHLORARGYRITE CHOREGRAPHERS CHOREGRAPHIES CHOREGRAPHING CHOREOGRAPHED CHOREOGRAPHER CHOREOGRAPHIC CHOROGRAPHERS CHOROGRAPHIES CHORUSMASTERS CHRISMATORIES CHROMATOPHORE CHROMOTHERAPY CHRONOGRAPHER CHRONOTHERAPY CHRYSOCRACIES CHURCHMANLIER CHURCHWARDENS CIRCULARISERS CIRCULARITIES CIRCULARIZERS CIRCUMGYRATED CIRCUMGYRATES CIRCUMROTATED CIRCUMROTATES CIRCUMSTELLAR CIRROSTRATIVE CLAPPERBOARDS CLAPPERCLAWER CLOVERGRASSES COCHAIRPERSON COCHLEARIFORM COMMEMORATORS COMMEMORATORY COMMISERATORS CONCENTRATORS CONCERTMASTER CONCORPORATED CONCORPORATES CONCRETIONARY CONFARREATION CONFRATERNITY CONGLOMERATOR CONSERVATOIRE CONSERVATORIA CONSPIRATRESS CONTAINERPORT CONTRADICTERS CONTRALATERAL CONTRARIETIES CONTRATERRENE CONTRITURATED CONTRITURATES CONTROVERSIAL CONVERSIONARY COPARCENARIES COPARCENERIES COPARTNERSHIP CORALLIFEROUS CORDWAINERIES COREFERENTIAL CORESEARCHERS CORONAVIRUSES CORPORALITIES CORPORATENESS CORPOREALISED CORPOREALISES CORPOREALISMS CORPOREALISTS CORPOREALIZED CORPOREALIZES CORPOREALNESS CORRELATIONAL CORRELATIVELY CORRELATIVITY CORROBORATIVE COSMOGRAPHERS COSTARDMONGER COTRANSFERRED COTRANSPORTED COTRANSPORTER COUNTERARGUED COUNTERARGUES COUNTERBRACED COUNTERBRACES COUNTERCHARGE COUNTERCHARMS COUNTERPLAYER COUNTERRAIDED COUNTERSCARPS COUNTERSTREAM COUNTERTHREAT COUNTERTRADED COUNTERTRADES CRAFTSPERSONS CRANIOMETRIES CRANIOMETRIST CRASHWORTHIER CREATUREHOODS CREATURESHIPS CRYOTHERAPIES CRYPTOGRAPHER CRYSTALLISERS CRYSTALLIZERS CURVILINEARLY CYBERATTACKER CYBERCHONDRIA CYBERCRIMINAL CYBERSQUATTER CYBERSTALKERS DECARBONATORS DECARBONISERS DECARBONIZERS DECARBURATION DECARBURISING DECARBURIZING DECEREBRATING DECEREBRATION DECLARATORILY DECORTICATORS DEMOCRATISERS DEMOCRATIZERS DEPRECATORILY DETRACTRESSES DEXTROCARDIAC DEXTROCARDIAS DIRECTORIALLY DISCOGRAPHERS DISCORPORATED DISCORPORATES DISCRETIONARY ECCREMOCARPUS ELECTRODERMAL ELECTROGRAPHS ELECTROGRAPHY ELECTROPLATER ELEUTHERARCHS ENCUMBRANCERS ENFRANCHISERS ERGATOCRACIES ERGATOMORPHIC EXPECTORATORS EXTRACELLULAR EXTRAMETRICAL EXTRATROPICAL EXTRAVASCULAR FERRICYANIDES FERRICYANOGEN FERRIMAGNETIC FERROCYANIDES FERROCYANOGEN FERROMAGNETIC FORECARRIAGES GALACTORRHEAS GALACTORRHOEA GASTROENTERIC GERIATRICIANS GERONTOCRATIC GIMCRACKERIES GRANDCHILDREN GRAVIMETRICAL HANDICRAFTERS HARDSCRABBLES HENCEFORWARDS HETEROCARPOUS HETEROGRAPHIC HIERARCHISING HIERARCHIZING HIEROCRATICAL HYDROCRACKERS HYDROMETRICAL HYDROTHERAPIC HYDROTHORACES HYGROMETRICAL HYPERCHARGING HYPERCRITICAL HYPERMETRICAL HYPERREACTIVE HYPERREACTORS HYPERROMANTIC HYPERSARCOMAS HYPERSARCOSES HYPERSARCOSIS HYPERSURFACES HYPERURICEMIA ICONOGRAPHERS INCARCERATING INCARCERATION INCARCERATORS INCORPORATIVE INCORPOREALLY INCUMBRANCERS INTERBRANCHES INTERCALARIES INTERCALARILY INTERCELLULAR INTERCHANGERS INTERCHAPTERS INTERCOLUMNAR INTERCOMPARED INTERCOMPARES INTERCORTICAL INTERCULTURAL INTERJECTURAL INTERMUSCULAR INTERPARTICLE INTERRACIALLY INTERSCAPULAR INTERTRAFFICS INTERTROPICAL INTRACELLULAR INTRACEREBRAL INTRATELLURIC IRRECLAIMABLE IRRECLAIMABLY IRRECOVERABLE IRRECOVERABLY IRRELEVANCIES IRREPLACEABLE IRREPLACEABLY IRRESISTANCES ISOBAROMETRIC KIRSCHWASSERS LEXICOGRAPHER MACRONUTRIENT MANUFACTURERS MATRIARCHATES MEGASTRUCTURE MERCENARINESS MERCERISATION MERCERIZATION MERCHANDISERS MERCHANDIZERS MERCURIALISED MERCURIALISES MERCURIALISMS MERCURIALISTS MERCURIALIZED MERCURIALIZES MERCURIALNESS MERITOCRACIES METACERCARIAE METACERCARIAL METACERCARIAS MICROFILARIAE MICROGRANITES MICROGRAPHERS MICROGRAPHIES MICROMANAGERS MICROMETRICAL MICROPARASITE MICROPARTICLE MISTRANSCRIBE MUCKSPREADERS MUSSELCRACKER NANOSTRUCTURE NECROGRAPHERS NECTARIFEROUS NECTARIVOROUS NEUROMUSCULAR NEUROSURGICAL NEUROVASCULAR NITROBACTERIA NONCHARACTERS NONCOOPERATOR NONPARAMETRIC NONRECIPROCAL NONRETRACTILE NORADRENERGIC OCEANOGRAPHER ONEIROMANCERS ORACULARITIES ORCHESOGRAPHY ORCHESTRALIST ORCHESTRATERS ORCHESTRATING ORCHESTRATION ORCHESTRATORS OREOGRAPHICAL OVERACHIEVERS OVERCAREFULLY OVERCHARGINGS OVERCRAMMINGS OVERDECORATED OVERDECORATES OVERDRAMATICS OVERENCOURAGE OVERINSURANCE OVERREACTIONS OVERRELIANCES OYSTERCATCHER PALAEOCURRENT PARARESCUEMAN PARARESCUEMEN PARTHENOCARPY PARTICLEBOARD PARTICOLOURED PARTICULARISE PARTICULARIZE PARTURIENCIES PATRIARCHATES PERENNIBRANCH PERICHONDRIAL PERIOSTRACUMS PERMACULTURES PERPENDICULAR PERSCRUTATION PERSEVERANCES PICROCARMINES PLEUROCARPOUS PRACTITIONERS PRAEFECTORIAL PREACHERSHIPS PREASSURANCES PRECAUTIONARY PRECEPTORATES PRECEPTORIALS PRECIPITATORS PRECLEARANCES PRECONTRACTED PRECOPULATORY PREFABRICATED PREFABRICATES PREFABRICATOR PREHISTORICAL PRELITERACIES PREORDINANCES PREPONDERANCE PREPONDERANCY PREPURCHASING PREVARICATING PREVARICATION PREVARICATORS PROCARBAZINES PROCATHEDRALS PROCELLARIANS PROCESSIONARY PROCRASTINATE PROCREATIONAL PROCURATORIES PRONUCLEARIST PROSECUTORIAL PROTECTORATES PROTOCERATOPS PROTOCHORDATE PROTUBERANCES QUARTERBACKED QUARTERDECKER RACKETEERINGS RACONTEURINGS RANCOROUSNESS RAPPROCHEMENT RAREFACTIONAL RAREFICATIONS REACCELERATED REACCELERATES REACCREDITING REACTIONARIES REACTIONARISM REACTIONARIST REAPPEARANCES REARTICULATED REARTICULATES REBROADCASTED RECALCITRANCE RECALCITRANCY RECALCITRANTS RECALCITRATED RECALCITRATES RECALIBRATING RECALIBRATION RECATEGORIZED RECATEGORIZES RECENTRALIZED RECENTRALIZES RECHOREOGRAPH RECIPROCALITY RECIPROCATING RECIPROCATION RECIPROCATIVE RECIPROCATORS RECIPROCATORY RECIRCULATING RECIRCULATION RECONCENTRATE RECONSECRATED RECONSECRATES RECREATIONIST RECRIMINATING RECRIMINATION RECRIMINATIVE RECRIMINATORS RECRIMINATORY RECRYSTALLISE RECRYSTALLIZE RECTANGULARLY RECTILINEARLY RECUPERATIONS REDECORATIONS REDELIVERANCE REFLECTOGRAMS REFLECTOGRAPH REFRACTOMETER REFRACTOMETRY REINCARNATING REINCARNATION REINCORPORATE REINFORCEABLE RELUBRICATING RELUBRICATION REMANUFACTURE REMEMBRANCERS REMONSTRANCES REORCHESTRATE REPROACHFULLY REPROACHINGLY REPROGRAPHICS RESUSCITATORS RETRACTATIONS RETROACTIVELY RETROACTIVITY RETROPHILIACS RHABDOMANCERS RHINOSCLEROMA RHOPALOCEROUS ROLLERCOASTER ROUTEMARCHING SACCHARIMETER SACCHARIMETRY SACCHAROMETER SACCHAROMETRY SCATTERBRAINS SCATTEROMETER SCENOGRAPHERS SCHLUMBERGERA SCHWARMERISCH SCLERODERMATA SCLERODERMIAS SCLEROTHERAPY SCRAPERBOARDS SCRIEVEBOARDS SCRIMSHANDERS SCRIMSHANKERS SECRETARIATES SECRETARYSHIP SHARECROPPERS SHARECROPPING SHELLCRACKERS SHORTCHANGERS SPEARCARRIERS SPECTROGRAPHS SPECTROGRAPHY SPORTSCASTERS SQUIREARCHIES STERCORACEOUS STERCORANISMS STERCORANISTS STERCORARIOUS STEREOGRAPHIC STRATOCRACIES STRATOSPHERIC STREPTOCARPUS STRUCTURALISE STRUCTURALIZE SUBCHARTERING SUBCONTRARIES SUPERACCURATE SUPERACHIEVER SUPERCALENDER SUPERCARRIERS SUPERCHARGERS SUPERCHARGING SUPERCOLUMNAR SUPERCRIMINAL SUPERCRITICAL SUPERGRAPHICS SUPERPARTICLE SUPERROMANTIC SUPERTEACHERS SURCHARGEMENT TACHYGRAPHERS TERPSICHOREAL TERPSICHOREAN TETRACHLORIDE TETRADRACHMAS TETRADRACHMON THENCEFORWARD THERMOGRAPHIC THERMONUCLEAR THOROUGHBRACE TORREFACTIONS TRANSCRIBABLE TRANSCRIPTASE TRANSCRIPTIVE TRANSCRIPTOME TRANSFERENCES TRANSPARENCES TRANSPIERCING TRANSPORTANCE TREACHEROUSLY TRICARPELLARY TRICERATOPSES TRICHOPTERANS TRICORPORATED TRISACCHARIDE TRISOCTAHEDRA TRITUBERCULAR TROCHEAMETERS TROPOSCATTERS TUBOCURARINES TURACOVERDINS TURBOCHARGERS UNCORRECTABLE UNDERACHIEVER UNDERCARRIAGE UNDERCHARGING UNDERCRACKERS UNDERREACTING UNDERREACTION UNDERSURFACES UNDOCTRINAIRE UNRECOVERABLE UNRECOVERABLY UNREPROACHFUL UNREPROACHING UNSTERCORATED VELOCIRAPTORS VERNACULARISE VERNACULARISM VERNACULARIST VERNACULARITY VERNACULARIZE VERSIFICATORS VITRIFACTURES WATERCOLORIST WEATHERCASTER ZINCOGRAPHERS