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There are 2 thirteen-letter words beginning with EFFI

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.

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 1Word.ws and WikWik.org.

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See this list for:

  • English Wiktionary: 2 words
  • Scrabble in French: 10 words
  • Scrabble in Spanish: no word
  • Scrabble in Italian: 7 words
  • Scrabble in German: no word
  • Scrabble in Romanian: no word


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