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There are 7 words beginning with EFFICA

EFFICACIESefficacies n. Plural of efficacy.
EFFICACY n. effectiveness.
EFFICACIOUSefficacious adj. (Formal) Effective; possessing efficacy.
EFFICACIOUS adj. having the power to produce a desired effect.
EFFICACIOUSLYefficaciously adv. In an efficacious manner.
EFFICACIOUS adv. having the power to produce a desired effect.
EFFICACIOUSNESSefficaciousness n. Quality of being efficacious.
EFFICACIOUS n. having the power to produce a desired effect.
EFFICACITIESefficacities n. Plural of efficacity.
EFFICACITY n. the state of being efficacious.
EFFICACITYefficacity n. Efficacy.
EFFICACITY n. the state of being efficacious.
EFFICACYefficacy n. Ability to produce a desired effect under ideal testing conditions.
efficacy n. Degree of ability to produce a desired effect; effectiveness.
EFFICACY n. effectiveness.

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: 7 words
  • Scrabble in French: 5 words
  • Scrabble in Spanish: no word
  • Scrabble in Italian: 5 words
  • Scrabble in German: no word
  • Scrabble in Romanian: no word


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