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[koh-op-uh-rey-shuh n] /koʊˌɒp əˈreɪ ʃən/
an act or instance of working or acting together for a common purpose or benefit; joint action.
more or less active assistance from a person, organization, etc.:
We sought the cooperation of various civic leaders.
willingness to cooperate:
to indicate cooperation.
Economics. the combination of persons for purposes of production, purchase, or distribution for their joint benefit:
producers' cooperation; consumers' cooperation.
Sociology. activity shared for mutual benefit.
Ecology. mutually beneficial interaction among organisms living in a limited area.
Also, co-operation.
Origin of cooperation
1620-30; (< Middle French) < Late Latin cooperātiōn- (stem of cooperātiō). See cooperate, -ion
Related forms
cooperationist, co-operationist, noun Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for cooperation
  • The result of their cooperation is a decidedly mixed affair.
  • And the result, often enough, is economic or political cooperation as well as the expansion of the moral circle.
  • Internal state power is sustained by external cooperation.
  • Globalization entails more interdependence, and interdependence requires cooperation.
  • Such cooperation today, resulting in two thirds of senators agreeing to a rule change, seems utterly impossible.
  • Other countries will reject our exploitation and demand instead our cooperation.
  • And never mind that today's teens are actually crushed by enmity and want nothing more than cooperation and support.
  • Their misery in the aftermath proved that they had failed, had violated the ancient code of cooperation.
  • So far there is nothing, there is no cooperation about anything and even no real dialogue.
  • But the study says increasing the amount of renewables on the grid will require smart planning and cooperation between utilities.
British Dictionary definitions for cooperation


joint operation or action
assistance or willingness to assist
(economics) the combination of consumers, workers, farmers, etc, in activities usually embracing production, distribution, or trade
(ecology) beneficial but inessential interaction between two species in a community
Derived Forms
cooperationist, co-operationist, noun
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 cooperation

late 15c., from Middle French coopération, or directly from Late Latin cooperationem (nominative cooperatio) "a working together," noun of action from past participle stem of cooperari "to work together," from com- "with" (see com-) + operari "to work" (see operation).

Online Etymology Dictionary, © 2010 Douglas Harper
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