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There are 3 fifteen-letter words beginning with COOPE

COOPERATIONISTSCOOPERATIONIST n. one who believes in cooperation.
COOPERATIVENESScooperativeness n. The state of being cooperative.
COOPERATIVE n. working together.
COOPERATIVITIEScooperativities n. Plural of cooperativity.
COOPERATIVITY n. the state of being cooperative.

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: 4 words
  • Scrabble in French: no word
  • Scrabble in Spanish: 2 words
  • Scrabble in Italian: no word
  • Scrabble in German: no word
  • Scrabble in Romanian: 20 words


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