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or co-operate

[koh-op-uh-reyt] /koʊˈɒp əˌreɪt/
verb (used without object), cooperated, cooperating.
to work or act together or jointly for a common purpose or benefit.
to work or act with another or other persons willingly and agreeably.
to practice economic cooperation.
Origin of cooperate
1595-1605; < Late Latin cooperātus past participle of cooperārī to work with. See co-, operate
Related forms
cooperator, co-operator, noun
uncooperating, adjective
2. collaborate, join, participate. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for cooperating
Contemporary Examples
Historical Examples
  • cooperating with them were some regular church organizations.

  • And whenever they are in action they are cooperating with external materials and energies.

  • He's an artist, but we beat him by cooperating to make machines.

    Northwest! Harold Bindloss
  • Instead of cooperating with police, he went to work on his own.

    Saboteurs on the River Mildred A. Wirt
  • "But you are not cooperating, Colonel Hampton," the psychiatrist complained.

    Dearest Henry Beam Piper
British Dictionary definitions for cooperating


verb (intransitive)
to work or act together
to be of assistance or be willing to assist
(economics) (of firms, workers, consumers, etc) to engage in economic cooperation
Derived Forms
cooperator, co-operator, noun
Word Origin
C17: from Late Latin cooperārī to work with, combine, from Latin operārī to work
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for cooperating



also co-operate, c.1600, from Late Latin cooperatus, past participle of cooperari "to work together with" (see cooperation). Related: Cooperated; cooperating.

Online Etymology Dictionary, © 2010 Douglas Harper
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