See also: coöperate and co-operate

English edit

Alternative forms edit

Etymology edit

Originated 1595–1605 from Late Latin cooperatus (work with). See co- + operate. Displaced native Old English efnwyrċan.

Pronunciation edit

  • IPA(key): /koʊˈɒpəɹeɪt/, /kuˈɒpəɹeɪt/
  • (file)
  • (file)
  • (file)
  • Rhymes: -ɒpəɹeɪt

Verb edit

cooperate (third-person singular simple present cooperates, present participle cooperating, simple past and past participle cooperated)

  1. (intransitive) To work or act together, especially for a common purpose or benefit.
    • 2012 November 7, Matt Bai, “Winning a Second Term, Obama Will Confront Familiar Headwinds”, in New York Times[1]:
      In polling by the Pew Research Center in November 2008, fully half the respondents thought the two parties would cooperate more in the coming year, versus only 36 percent who thought the climate would grow more adversarial.
  2. (intransitive) To allow for mutual unobstructed action
  3. (intransitive) To function in harmony, side by side
  4. (intransitive) To engage in economic cooperation.

Usage notes edit

  • The usual pronunciation of 'oo' is /uː/ or /ʊ/. The dieresis in the spelling coöperate – now obsolete outside the pages of The New Yorker – was intended to emphasize that the second o begins a separate syllable.
  • The solid form is much more common than the hyphenated form in both British and American corpora. The hyphenated form used to be more common in British usage, but is no more.[1]

Synonyms edit

Related terms edit

Translations edit

References edit

Further reading edit

Italian edit

Etymology 1 edit

Verb edit


  1. inflection of cooperare:
    1. second-person plural present indicative
    2. second-person plural imperative

Etymology 2 edit

Participle edit

cooperate f pl

  1. feminine plural of cooperato

Latin edit

Participle edit


  1. vocative masculine singular of cooperātus

Spanish edit

Verb edit


  1. second-person singular voseo imperative of cooperar combined with te