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There are 41 eighteen-letter words containing I, 3N, P, S and Y

Anglo-Egyptian␣Sudananilinopyrimidinesarsenophenylglycincyclopentadienonesdehydrosphinganinedensity␣dependencesdiphenylhydantoinsheap␣insult␣on␣injuryhypercondensationshypermannosylationhypersynchronizingindulgency␣patternsisopentenyladeninekey␣person␣insurancemedium␣spiny␣neuronsnoncompositionallynonintrospectivelynonphosphorylatingnonphosphorylationnonthienopyridinesParkinson's␣syndromePennsylvania␣AvenuePennsylvania␣GermanPennsylvania␣riflesPennsylvania␣sedgespermanent␣residencypharyngointestinalphenylenevinylenespin␣a␣rose␣on␣your␣noseplenary␣indulgencesPolynesian␣Trianglepolyphenylalanines poly-phenylalaninespour␣honey␣in␣one's␣earpresynchronizationpyranoanthocyaninssplanchnocraniallystannary␣parliamentsuspension␣syndrometranscriptionnallytransphenomenality

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See this list for:

  • Scrabble in English: no word
  • French Wiktionary: 44 words
  • Spanish Wiktionary: no word
  • Italian Wiktionary: no word
  • German Wiktionary: 12 words
  • Portuguese Wiktionary: no word
  • Dutch Wiktionary: 2 words

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