cooperation
Americannoun
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an act or instance of working or acting together for a common purpose or benefit; joint action.
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more or less active assistance from a person, organization, etc..
We sought the cooperation of various civic leaders.
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willingness to cooperate.
to indicate cooperation.
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Economics. the combination of persons for purposes of production, purchase, or distribution for their joint benefit.
producers' cooperation; consumers' cooperation.
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Sociology. activity shared for mutual benefit.
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Ecology. mutually beneficial interaction among organisms living in a limited area.
noun
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joint operation or action
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assistance or willingness to assist
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economics the combination of consumers, workers, farmers, etc, in activities usually embracing production, distribution, or trade
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ecology beneficial but inessential interaction between two species in a community
Other Word Forms
Etymology
Origin of cooperation
First recorded in 1620–30; from Middle French, from Late Latin cooperātiōn-, stem of cooperātiō; equivalent to cooperate + -ion
Explanation
Working together is cooperation. Thanks to the cooperation of the parents, teachers, and students, the end of year school dance rocked the house without rocking the boat. If you break apart cooperation you see co which means together and operation which is a project or job. When you practice cooperation you are working together on a job or project. Cooperation can sometimes be hard to come by, which is why when someone does a lot of it, it's nice to say thank you.
Vocabulary lists containing cooperation
Ecology - Interdependent Relationships in Ecosystems - Introductory
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Lyndon B. Johnson on "The Great Society" (1964)
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John F. Kennedy, Inaugural Address, January 20, 1961
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Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The European Commission proposed legislation for the deal in September 2025, which will remove tariffs on exported goods such as EU cheese and seeks to enhance cooperation on raw material supply chains.
From The Wall Street Journal • May 22, 2026
To avoid any quarrels, I suggest timing any stock sale, with the beneficiaries’ cooperation, so that no one inadvertently misses out on a dividend payment.
From MarketWatch • May 21, 2026
On Wednesday evening, Magyar is expected in Austria, where economic cooperation and migration policy will be key topics.
From Barron's • May 20, 2026
At a press conference in May, Putin said that the two sides were very close to taking "a highly significant step forward in oil and gas cooperation".
From BBC • May 18, 2026
On the other hand, Arkush writes, Chinese proverbs are striking in their belief that “hard work, shrewd planning and self-reliance or cooperation with a small group will in time bring recompense.”
From "Outliers" by Malcolm Gladwell
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
