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List of 13-letter words containing

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There are 6 thirteen-letter words containing E, 2F, 2I, O, S and U

EFFICACIOUSLYefficaciously adv. In an efficacious manner.
EFFICACIOUS adv. having the power to produce a desired effect.
EFFIGURATIONSEFFIGURATION n. an elaborate, detailed description of an object or an event.
FOSSILIFEROUSfossiliferous adj. Containing fossils.
FOSSILIFEROUS adj. bearing fossils.
INEFFICACIOUSinefficacious adj. Incapable of having the intended consequence.
inefficacious adj. Not effective.
INEFFICACIOUS adj. lacking the power to produce a desired effect.
NONDIFFUSIBLEnondiffusible adj. Not diffusible.
NONDIFFUSIBLE adj. not diffusible.
OFFICIOUSNESSofficiousness n. The quality of being officious.
OFFICIOUS n. volunteering one's services too eagerly.

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: 18 words
  • Scrabble in French: 17 words
  • Scrabble in Spanish: 4 words
  • Scrabble in Italian: 7 words
  • Scrabble in German: no word
  • Scrabble in Romanian: 2 words


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