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There are 30 eighteen-letter words containing I, K, O, P and 3S

Arkansas␣toothpicksCzochralski␣processkeep␣one's␣lips␣sealedkeeps␣it␣in␣one's␣pantskept␣one's␣lips␣sealedloose␣lips␣sink␣shipsMissouri␣toothpicksmonophosphokinasesPaal-Knorr␣synthesisParkinson's␣syndromepentakisphosphatesphotocrosslinkingspick␣someone's␣brainspiscirickettsiosispiss␣like␣a␣racehorsepolishes␣one's␣rocketpseudoleukocytosispseudophakodonesispulling␣one's␣socks␣uppulling␣up␣one's␣sockspyrophosphokinasesShakespearologistsskotomorphogenesissneaking␣suspicionsspanners␣in␣the␣worksspiked␣someone's␣gunsspikes␣someone's␣gunstetrakisphosphatesthree␣skips␣of␣a␣lousetricks␣up␣one's␣sleeve

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See this list for:

  • Scrabble in English: no word
  • French Wiktionary: 15 words
  • Spanish Wiktionary: no word
  • Italian Wiktionary: no word
  • German Wiktionary: 61 words
  • Portuguese Wiktionary: no word
  • Dutch Wiktionary: 30 words

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