There are 895 eleven-letter words containing A, C, I and 2S, https://www.bestwordlist.com/c/a/5/11letterwordswithaciss.htm ABSCISSIONS ABSCONDINGS ABSTINENCES ACCESSARIES ACCESSARILY ACCESSIONAL ACCESSIONED ACCESSORIAL ACCESSORIES ACCESSORILY ACCESSORISE ACCESSORIUS ACCESSORIZE ACCUSATIONS ACCUSATIVES ACESCENCIES ACQUISITORS ACRIDNESSES ACROBATISMS ACROPOLISES ACTOMYOSINS ACTRESSIEST AECIOSPORES AEROBICISES AEROBICISTS AEROSTATICS AGNOSTICISM AIRSICKNESS ALCOHOLISES ALCOHOLISMS ALISMACEOUS AMPHISCIANS ANACHARISES ANACHORISMS ANCIENTNESS ANECDOTISTS ANESTHETICS ANTHRACOSIS ANTICHRISTS ANTICIVISMS ANTIFASCISM ANTIFASCIST ANTIRACISMS ANTIRACISTS ANTISEPTICS ANTISOCIALS ANTISPASTIC ANTISTATICS APOLAUSTICS ARCHAICISMS ARCHBISHOPS ARCHIPLASMS ARCHONSHIPS ARCHPRIESTS ARCUBALISTS ARISTOCRATS ARSMETRICKS ASCENSIONAL ASCETICISMS ASCITITIOUS ASCLEPIASES ASCRIPTIONS ASEPTICISED ASEPTICISES ASEPTICISMS ASEPTICIZES ASSISTANCES ASSOCIATING ASSOCIATION ASSOCIATIVE ASSOCIATORS ASSOCIATORY ASTATICISMS ASTIGMATICS ASTRICTIONS ASTUCIOUSLY ATELECTASIS ATTOPHYSICS AUTARCHISTS AUTOSCOPIES BACKFISCHES BACKSHISHED BACKSHISHES BACKSLIDERS BACKSTORIES BACTERIOSES BACTERIOSIS BAITCASTERS BARACHOISES BERDACHISMS BIENSEANCES BIOPLASTICS BLACKFISHES BLACKSHIRTS BLACKSMITHS BLASTODISCS BREADSTICKS CACOMISTLES CADDISFLIES CADDISHNESS CADDISWORMS CAFFEINISMS CALCSINTERS CALLIPASHES CALLOSITIES CALOTYPISTS CAMBISTRIES CAMORRISTAS CAMPINESSES CANDIDIASES CANDIDIASIS CANISTERISE CANNINESSES CANTHITISES CANTINESSES CANVASSINGS CAPITALISES CAPITALISMS CAPITALISTS CAPSULISING CAPTIONLESS CARAMELISES CARBONISERS CARESSINGLY CARESSIVELY CARIOSITIES CARIOUSNESS CARNASSIALS CARNOSITIES CARSHARINGS CARSICKNESS CARTOONISTS CARYOPSIDES CASCARILLAS CASEINOGENS CASHIERINGS CASINGHEADS CASSEROLING CASSIOPEIUM CASSITERITE CASSOWARIES CASTIGATORS CASTRATIONS CASUALISING CASUISTICAL CASUISTRIES CATABOLISES CATABOLISMS CATACHRESIS CATALEPSIES CATALOGISES CATAPLASIAS CATECHISERS CATEGORISES CATEGORISTS CATSKINNERS CATTINESSES CATTISHNESS CAUCUSSINGS CAUSALITIES CAUSTICNESS CAVENDISHES CEDARSTRIPS CENESTHESIA CENTESIMALS CENTRALISES CENTRALISMS CENTRALISTS CERAMICISTS CERATITISES CERATOPSIDS CESTOIDEANS CHAMPIONESS CHANNELISES CHAOLOGISTS CHAPRASSIES CHAPTALISES CHARINESSES CHASTISABLE CHAUVINISMS CHAUVINISTS CHEVESAILES CHEVISANCES CHIMAERISMS CHLORALISMS CHOIRSTALLS CHOLESTASIS CHREMATISTS CHROMATISTS CHRYSALIDES CHRYSALISES CHUPRASSIES CHURNALISMS CICATRISERS CINEMATISES CIRCASSIANS CLACKDISHES CLASSICALLY CLASSICISED CLASSICISES CLASSICISMS CLASSICISTS CLASSICIZED CLASSICIZES CLASSIFIEDS CLASSIFIERS CLASSIFYING CLAVIERISTS CLEANLINESS CLIANTHUSES CLOACITISES CNIDOBLASTS COASSISTING COESSENTIAL COGNISANCES COMICALNESS COMITATUSES COMMISSAIRE COMMISSURAL COMPARISONS COMPASSINGS COMPASSIONS CONACREISMS CONCLAVISMS CONCLAVISTS CONFISCATES CONSOCIATES CONSPIRANTS CONSTANCIES CONSTATIVES CONSTIPATES CONSTRAINTS CONTRABASSI CORDIALISES CORDIALNESS CORYDALISES COSCENARIST COSTEANINGS COWARDSHIPS CRAMPFISHES CRANESBILLS CRASSITUDES CRAZINESSES CRISPATIONS CRISPATURES CRISPBREADS CROSSCLAIMS CRUISEWEARS CRUSTATIONS CRYSTALISED CRYSTALISER CRYSTALISES CRYSTALIZES CRYSTALLISE CUBICALNESS CUIRASSIERS CURATESHIPS CURTAINLESS CUSTARDIEST CUSTOMARIES CUSTUMARIES CYNICALNESS CYSTEAMINES CYSTINURIAS CYTOSTATICS DEACCESSION DEACONSHIPS DECALOGISTS DECASUALISE DECIMALISES DECIMALISMS DECIMALISTS DECREASINGS DECUSSATING DECUSSATION DELOCALISES DESACRALISE DESICCATORS DESISTANCES DEVOCALISES DIACAUSTICS DIACOUSTICS DIACTINISMS DIAGNOSTICS DICASTERIES DINOCERASES DISACCUSTOM DISADVANCES DISAVAUNCES DISAVOUCHES DISBRANCHES DISCHARGEES DISCHARGERS DISCLAIMERS DISCLIMAXES DISCLOSABLE DISCOURAGES DISCULPATES DISCUSSABLE DISCUSSANTS DISENCHAINS DISENCHANTS DISGRACIOUS DISPATCHERS DISSOCIABLE DISSOCIABLY DISSOCIATED DISSOCIATES DISSONANCES DISSYLLABIC DISTRACTERS DISTRACTORS DYNAMICISTS DYNASTICISM DYSCRASITES DYSGRAPHICS DYSTHYMIACS ECBLASTESIS ECCLESIASTS ECSTASISING ECSTASIZING EICOSANOIDS EKISTICIANS ELASTICATES ELASTICISED ELASTICISES ELASTICIZES ELASTICNESS EMANCIPISTS ENCANTHISES EPISCOPANTS EPISCOPATES EPISPASTICS EREMACAUSIS ERRATICISMS ESCADRILLES ESCALATIONS ESCALLONIAS ESCHAROTICS ESEMPLASTIC ESTANCIEROS ETHICALNESS EVISCERATES EXSICCATORS FACSIMILIST FACTIONISTS FACTORSHIPS FACTUALISMS FACTUALISTS FANATICISES FANATICISMS FANCINESSES FASCIATIONS FASCIITISES FASCINATORS FATISCENCES FINICALNESS FLACCIDNESS FRANCHISEES FRANCHISERS FRANCHISORS FRANTICNESS GLACIALISTS GLUCOSIDASE GLUCOSURIAS GLYCOSIDASE GLYCOSURIAS GRACILENESS GRAPHICNESS GRECIANISES GYROSTATICS HACKNEYISMS HACKTIVISMS HACKTIVISTS HAGIOSCOPES HARUSPICIES HASSOCKIEST HEMOSTATICS HEPTASTICHS HERESIARCHS HESITANCIES HIPPOCRASES HISPANICISE HISPANICISM HOPSACKINGS HYPERACUSIS ICONOCLASMS ICONOCLASTS ICONOSTASES ICONOSTASIS ICOSANDROUS IDOLOCLASTS IMPUISSANCE INCANDESCES INCASEMENTS INCESSANTLY INCRASSATED INCRASSATES INCREASINGS INCRUSTANTS INEXACTNESS INOSCULATES INSECTARIES INSURANCERS INTERCASTES INTERSPACES INTESTACIES ISAPOSTOLIC ISOCHEIMALS ISOCYANATES ISOCYANIDES ISODYNAMICS ISOPACHYTES JINRICKSHAS JOUISSANCES KICKSHAWSES KILOPARSECS KILOPASCALS LACONICISMS LACTOSURIAS LAMBDACISMS LANDSCAPIST LEMNISCATES LEXICALISES LINECASTERS LITHOCLASTS LOGICALNESS LUCIFERASES LYRICALNESS MACADAMISES MACHINELESS MACINTOSHES MACROFOSSIL MACROPRISMS MANICURISTS MANOSCOPIES MANSCAPINGS MANUSCRIPTS MARASCHINOS MARCHIONESS MARSHALCIES MASCULINISE MASCULINIST MASOCHISTIC MASTICATORS MATCHSTICKS MECHANISERS MEDIASCAPES MEDICALISES MEDICASTERS MESOBLASTIC MESOCRANIES MESOGASTRIC METACHROSIS METAPHYSICS MICROSCALES MICROSTATES MIMOSACEOUS MISBALANCES MISCAPTIONS MISCATALOGS MISCHANNELS MISCHANTERS MISCHMETALS MISCLASSIFY MISCLASSING MISCREANCES MISCREATORS MISEDUCATES MISFEASANCE MISPACKAGES MOBCASTINGS MONARCHISES MONARCHISMS MONARCHISTS MONASTICISM MOSAICKINGS MOUSTACHIOS MULTIACCESS MUSCARDINES MUSICALISED MUSICALISES MUSICALIZES MUSICALNESS MUSICIANERS MYASTHENICS NANOPHYSICS NARCISSISMS NARCISSISTS NARCISSUSES NASOGASTRIC NECESSAIRES NECESSARIAN NECESSARIES NECESSARILY NECESSITATE NEWSCASTING NICROSILALS NIGHTSCAPES NONASCETICS NONELASTICS NONMUSICALS NONPLASTICS NONSENSICAL NOWCASTINGS NUCLEARISES NUMISMATICS OBSTINACIES OCCASIONERS OLIGOCLASES OPSOMANIACS ORCHARDISTS ORGANICISMS ORGANICISTS OSCILLATORS OSCITANCIES OSCITATIONS OSCULATIONS OSTEOCLASIS OSTRACISERS OSTRACISING OSTRACIZERS OUTCLASSING PACIFICISMS PACIFICISTS PALACSINTAS PANCOSMISMS PANCRATISTS PANDECTISTS PANPSYCHISM PANPSYCHIST PARACASEINS PARISCHANES PASSACAGLIA PASTICHEURS PATAPHYSICS PAUNCHINESS PENTASTICHS PERISARCOUS PERSICARIAS PHALLICISMS PHALLICISTS PHANTASTICS PHARMACISTS PHYSIATRICS PHYSICALISM PHYSICALIST PHYSIOCRATS PICARESQUES PILLOWCASES PISCATRIXES PISCIFAUNAS PLASTICENES PLASTICINES PLASTICISED PLASTICISER PLASTICISES PLASTICIZES PLICATENESS PODCASTINGS POLYMASTICS POSTCLASSIC PRACTISANTS PREACHINESS PREFASCISTS PROSAICISMS PROSAICNESS PSEUDOACIDS PSITTACINES PSITTACOSES PSITTACOSIS PSYCHIATERS PUISSAUNCES PURCHASINGS PUSCHKINIAS QUADRISECTS RADICALISES RADICALISMS RADICALNESS RADIOSCOPES RANSACKINGS RASCALITIES RASCALLIEST RASCALLIONS RAUNCHINESS REACCESSION REASCENSION RECANALISES RECESSIONAL RECITALISTS RECUSANCIES RECUSATIONS REICHSMARKS REINCREASES RENAISSANCE REQUIESCATS RESEARCHIST RESISTANCES RESOCIALISE RESUSCITANT RESUSCITATE REVANCHISMS REVANCHISTS RHACHITISES RICEGRASSES RICKETTSIAS RIVERSCAPES RUSTICATORS SABBATICALS SACAHUISTAS SACAHUISTES SACCHARIDES SACCHARINES SACCHARISED SACCHARISES SACCHARIZES SACCHAROIDS SACHEMSHIPS SACRALISING SACRALITIES SACRIFICERS SACRILEGIST SACROILIACS SAGACIOUSLY SALACIOUSLY SALICACEOUS SALICIONALS SALICORNIAS SALICYLATES SALICYLISMS SANCTIFIERS SANCTIONERS SANCTITUDES SANCTUARIES SANCTUARISE SARCOCYSTIS SARCOIDOSES SARCOIDOSIS SARCOLOGIES SARCOPENIAS SARDONICISM SARRACENIAS SATISFICERS SATISFICING SAUCINESSES SAURISCHIAN SAUSSURITIC SCALDFISHES SCALINESSES SCALLOPINGS SCALLOPINIS SCALOPPINES SCAMPERINGS SCANDALISED SCANDALISER SCANDALISES SCANDALIZES SCAPIGEROUS SCAPULARIES SCARABAEIDS SCARABAEIST SCARINESSES SCARLATINAS SCATOLOGIES SCATOLOGIST SCATTERIEST SCATTERINGS SCAVENGINGS SCENARISING SCHALSTEINS SCHECHITAHS SCHEMATISED SCHEMATISES SCHEMATISMS SCHEMATISTS SCHEMATIZES SCHISMATICS SCHISMATISE SCHISMATIZE SCHIZANTHUS SCHIZOCARPS SCHLIMAZELS SCHMALZIEST SCHOLARSHIP SCHOLASTICS SCHOLIASTIC SCHOOLMAIDS SCIAMACHIES SCINTIGRAMS SCINTISCANS SCIOMACHIES SCIOMANCERS SCIOMANCIES SCISSORTAIL SCORIACEOUS SCORPAENIDS SCOTODINIAS SCRABBLIEST SCRABBLINGS SCRAGGINESS SCRAGGLIEST SCRAMBLINGS SCRAPPINESS SCRATCHIEST SCRATCHINGS SCRAWNINESS SCRIBACIOUS SCRIMMAGERS SCRIMSHANDY SCRIMSHANKS SCRIMSHAWED SCYPHISTOMA SEANNACHIES SEASICKNESS SECESSIONAL SECONDARIES SECRETAIRES SECRETARIES SECULARISED SECULARISER SECULARISES SECULARISMS SECULARISTS SECULARIZES SEISMICALLY SEMANTICIST SEMICLASSIC SEPTICEMIAS SEQUACITIES SERGEANCIES SERJEANCIES SHAKUHACHIS SHAMANISTIC SHANKPIECES SHAUCHLIEST SHOPAHOLICS SHRINKPACKS SIBILANCIES SIEGECRAFTS SILVERBACKS SIMULACRUMS SIMULCASTED SINARCHISMS SINARCHISTS SKIAMACHIES SKIASCOPIES SKYJACKINGS SKYSCRAPING SLACKENINGS SLACKTIVISM SLACKTIVIST SLACTIVISMS SLACTIVISTS SLIMNASTICS SLUICEGATES SMITHCRAFTS SOCIALISERS SOCIALISING SOCIALISTIC SOCIALITIES SOCIALIZERS SOCIOSEXUAL SOLICITANTS SONICATIONS SOPHISTICAL SPACINESSES SPASMATICAL SPASMODICAL SPASMOLYTIC SPASTICALLY SPECIALISED SPECIALISER SPECIALISES SPECIALISMS SPECIALISTS SPECIALIZES SPECIALNESS SPECIALTIES SPECIATIONS SPECULATIST SPERMACETIS SPHRAGISTIC SPIFLICATES SPINACHIEST SPINCASTERS SPRAUNCIEST SQUINANCIES SQUIREARCHS STAGNANCIES STAIRCASING STALACTITES STARCHINESS STATICKIEST STATISTICAL STAUNCHINGS STAYCATIONS STIACCIATOS STICHARIONS STICKYBEAKS STOICALNESS STOMACHIEST STRAICHTEST SUBACIDNESS SUBAGENCIES SUBARTICLES SUBCABINETS SUBCARRIERS SUBCAVITIES SUBCLASSIFY SUBCLASSING SUBCLAVIANS SUBCLIMAXES SUBDIALECTS SUBMATRICES SUBSOCIALLY SUBVOCALISE SUFFIGANCES SUFFISANCES SULCALISING SUPPLIANCES SUPPLICANTS SUPPLICATES SUPREMACIES SUPREMACISM SUPREMACIST SURFCASTING SURROGACIES SURVIVANCES SUSCITATING SUSCITATION SUSPICIONAL SWITCHBACKS SWITCHGEARS SWITCHGRASS SWITCHYARDS SYMPOSIARCH SYNDICALISM SYNDICALIST SYNDICATORS SYSSARCOSIS SYSSARCOTIC SYSTEMATICS TACITNESSES TACKINESSES TAPERSTICKS TAPESCRIPTS TEICHOPSIAS TESTATRICES TETRASTICHS THALASSEMIC THEOCRASIES TICKLEASSES TOVARISCHES TRACASSERIE TRACHINUSES TRACHITISES TRAFFICLESS TRANSCRIBES TRANSCRIPTS TRANSGENICS TRANSIENCES TRANSVESTIC TREACLINESS TSAREVICHES TSESAREVICH TSESAREWICH TYPICALNESS ULTRABASICS ULTRASONICS UNCANNINESS UNCANONISES UNCHASTISED UNCLASSICAL UNCLASSIEST UNISONANCES UNSOCIALISM USUCAPIENTS USUCAPTIONS VASCULARISE VASECTOMIES VASECTOMISE VASOSPASTIC VESICATIONS VESICULATES VICTUALLESS VISCACHERAS VIVACISSIMO VOCABULISTS VODCASTINGS VULCANISERS WACKINESSES WAISTCLOTHS WAPINSCHAWS WEBCASTINGS XEROCHASIES