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There are 6 twelve-letter words containing E, F, 3O, P, R and U

COUNTERPROOFcounterproof n. (Printing) The inverted image of an original proof.
counterproof n. (Logic) A proof that contradicts a given statement.
COUNTERPROOF n. an inverted impression obtained from a newly printed proof of an engraving, by laying it, while the ink is still wet, upon plain paper, and passing it through the press.
FLUOROPHORESfluorophores n. Plural of fluorophore.
FLUOROPHORE n. a chemical group responsible for fluorescence.
FLUOROSCOPEDfluoroscoped v. Simple past tense and past participle of fluoroscope.
FLUOROSCOPE v. to examine by fluoroscope.
FLUOROSCOPESfluoroscopes n. Plural of fluoroscope.
FLUOROSCOPE v. to examine by fluoroscope.
SOPORIFEROUSsoporiferous adj. (Archaic) soporific, sleep-inducing.
SOPORIFEROUS adj. causing or tending to cause sleep.
SOUNDPROOFEDsoundproofed v. Simple past tense and past participle of soundproof.
SOUNDPROOF v. to insulate so as to obstruct the passage of sound.

Scrabble words — in black are valid world wide — in RED are not valid in North America — in GREEN are valid only in North America.
Definitions are short excerpt from the WikWik.org and 1Word.ws.

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See this list for:

  • English Wiktionary: 14 words
  • Scrabble in French: 1 word
  • Scrabble in Spanish: no word
  • Scrabble in Italian: 2 words
  • Scrabble in German: no word
  • Scrabble in Romanian: 4 words


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