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There are 46 twenty-one-letter words containing A, E, H, N, S, T and X

acetylhexosaminidasesbenzyloxyphthalimidesChannel-Port␣aux␣Basqueschosen-plaintext␣attackdidesmethyldoxylaminedihydroxynaphthalenesdihydroxyphenylisatindiketospirilloxanthindimethoxyamphetaminesdimethoxyquinazolinesdimethylpolysiloxanesdumber␣than␣a␣box␣of␣rocksEastern␣Orthodox␣Churchexchanging␣of␣contractsexponential␣smoothingsfirst-chance␣exceptionshaving␣sexual␣relationshemihexakisoctahedronhexachloroantimonateshexafluoroantimonateshexafluoroisobutylenehexamethyldisilanizedhexamethylenediamineshydroxyanthraquinonesichthyoallyeinotoxismisopropylthioxanthoneJoule-Thomson␣expansionmetaxylohydroquinonesmethoxycarbonylationsmethyltriethoxysilanemitochondrial␣matrixesoctamethyltrisiloxaneoperational␣exhaustionpaleohexaploidisationphotodecarboxylationspolydimethylsiloxanespolyhydroxyalkanoatesSan␣Andrés␣ChicahuaxtlaSerbian␣Orthodox␣Churchserdexmethylphenidatesuck␣all␣the␣oxygen␣out␣ofsuxamethonium␣chloridetakes␣it␣to␣the␣next␣levelthree␣marks␣of␣existencewhen␣one␣least␣expects␣itWitherspoon-excludable

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See this list for:

  • Scrabble in English: no word
  • French Wiktionary: 51 words
  • Spanish Wiktionary: no word
  • Italian Wiktionary: no word
  • German Wiktionary: 11 words
  • Portuguese Wiktionary: no word
  • Dutch Wiktionary: 3 words

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