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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 cooperate
Contemporary Examples
Historical Examples
  • They could do almost everything except communicate and cooperate.

    The Issahar Artifacts Jesse Franklin Bone
  • Now we ought always to cooperate with the lead of the best, which is law.

    Laws Plato
  • I must really ask you to cooperate; I believe you fully capable.

    We're Friends, Now Henry Hasse
  • I would like you to cooperate fully with Mr. Beardsley's line of approach.

    We're Friends, Now Henry Hasse
  • Tell how a scout may cooperate with the board of health in preventing disease.

    Boy Scouts Handbook Boy Scouts of America
British Dictionary definitions for cooperate


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 cooperate

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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