or co-op·er·a·tion

[ koh-op-uh-rey-shuhn ]
/ koʊˌɒp əˈreɪ ʃən /
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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.
In effect, this quiz will prove whether or not you have the skills to know the difference between “affect” and “effect.”
Question 1 of 7
The rainy weather could not ________ my elated spirits on my graduation day.
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Origin of cooperation

1620–30; (<Middle French ) <Late Latin cooperātiōn- (stem of cooperātiō). See cooperate, -ion

OTHER WORDS FROM cooperation

co·op·er·a·tion·ist, co-op·er·a·tion·ist, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use cooperation in a sentence

British Dictionary definitions for cooperation



/ (kəʊˌɒpəˈreɪʃən) /

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 of cooperation

cooperationist or 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