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There are 4 fourteen-letter words containing EFFICI

HYPEREFFICIENThyperefficient adj. Extremely efficient.
HYPEREFFICIENT adj. excessively efficient.
INEFFICIENCIESinefficiencies n. Plural of inefficiency.
INEFFICIENCY n. the state of being inefficient.
SUPEREFFICIENTsuperefficient adj. Very efficient.
SUPEREFFICIENT adj. extremely efficient.
ULTRAEFFICIENTultraefficient adj. Extremely efficient; of utmost efficiency.
ULTRAEFFICIENT adj. extremely efficient.

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: no word
  • Scrabble in Spanish: no word
  • Scrabble in Italian: no word
  • Scrabble in German: no word
  • Scrabble in Romanian: no word


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