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There are 782 eighteen-letter words containing A, M, O, S and Y

Abernethy's␣sarcomasabnormal␣psychologyabsolutely␣summableabstinence␣syndromeAbyssinian␣primroseaccessory␣equipmentaccretionary␣prismsacetamidoacrylatesacetylaminophenolsacetylglucosaminesacetylglucosaminylacetyllactosaminesacylhydroxylaminesadenosylmethionineadenotonsillectomyad-hoc␣polymorphismsaequihymeniiferousaerothermodynamicsalien␣hand␣syndromesalkenoylbenzamidesalkenoylcarbamatesalkoxymethylidenesalkylcarbodiimidesaluminum␣hydroxidesalumoklyuchevskiteAlzheimer's␣syndromeaminoalkynylationsamino␣carbohydratesaminocyclohexitolsaminocyclopropanesaminopolypeptidaseaminosalicylic␣acidanalyst␣programmersanarchosyndicalism anarcho-syndicalismaneurysmorrhaphiesanilinopyrimidinesanisodiametricallyanisohypermetropiaanisohypermetropicanonymous␣functionsanonymous␣sculptureanthropomorphouslyanthroposomatologyantidiscriminatoryantimonyltartratesantimycobacterialsantisymmetrisationantisymmetrizationantitrypanosomallyantitrypanosomatidaortic␣arch␣syndromeapocalyptic␣numbersapothecaries'␣systemapple␣of␣someone's␣eyeaptahistochemistryare␣you␣a␣man␣or␣a␣mousearsenal␣of␣democracy Arsenal␣of␣Democracyart␣gallery␣problemsarylcyclohexaminesarylhydroxylaminesarylthioacetamidesaspidorhynchiformsAssyrian␣Neo-Aramaicasymptotic␣analysesasymptotic␣analysisatmospheric␣railwayatypical␣pneumoniasautomotive␣industryautophagolysosomalautophagolysosomesbalances␣of␣paymentsBallantyne␣syndromebarracks␣room␣lawyerbasidiobolomycosisbatrachomyomachiesBeals-Hecht␣syndromebeen␣on␣one's␣merry␣waybig␣hairy␣armadillosbiomicroscopicallybiophysicochemical bio-physico-chemicalbiostratinomicallybishydroxamic␣acidsbishydroxycoumarinblastocladiomyceteblue-eyed␣cormorantsBoas-Buck␣polynomialbody-to-body␣massagesbone␣mineral␣densityboomerang␣dysplasiaBoundary␣Commissionbrachymesophalangybranny␣desquamationbromobenzaldehydesbronchospasmolyticBudd-Chiari␣syndromeBuddha␣belly␣bamboosBurkitt's␣lymphomataCalifornia␣sycamorecamphocarboxylatescamplyobacteriosiscampylobacteriosescampylobacteriosiscandy␣store␣problemscarbamoylaspartatecarbamoylphosphate carbamoyl␣phosphatecarbamoylphosphinecarboxyhemoglobinscardiomyocytolysiscardiosphygmographcarry␣someone's␣watercatch␣someone's␣fancychebulic␣myrobalanschemoprophylacticschemosomatosensorychemosyntheticallyChilaiditi␣syndromechloroethoxyamineschloromethylationsChomsky␣hierarchieschondromesenchymalchondromyxosarcomaChristian␣democracy Christian␣Democracychromoanasynthesischronic␣Lyme␣diseasecirculatory␣systemscity␣administratorscochleosacculotomycoming␣to␣a␣sticky␣endcommissary␣generalscommodity␣exchangescommon␣yellow␣oxaliscommunity␣languages Community␣languagescomplementary␣goodscompulsory␣purchasecomputable␣analysiscomputation␣history

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See this list for:

  • Scrabble in English: no word
  • French Wiktionary: 534 words
  • Spanish Wiktionary: 4 words
  • Italian Wiktionary: no word
  • German Wiktionary: 53 words
  • Portuguese Wiktionary: no word
  • Dutch Wiktionary: 40 words

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