cooperation

[koh-op-uh-rey-shuhn] / koʊˌɒp əˈreɪ ʃən /

NOUN

mutual effort

Synonyms

STRONGEST

aid assistance collaboration participation partnership service unity

STRONG

alliance cahoots coaction coalition combination communion company concert concurrence confederacy confederation conspiracy federation fusion give-and-take harmony help helpfulness logrolling partisanship reciprocity responsiveness society symbiosis synergism synergy teamwork unanimity union

WEAK

coadjuvancy combined effort confunction doing business with esprit de corps playing ball teaming

Antonyms

STRONG

antagonism disagreement discord disunion disunity division divorce hostility management separation

WEAK

blockage delay encumbrance hindrance obstruction prevention stoppage

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.

It offered conditional immunity from prosecution to anyone involved in Troubles-era crimes, including paramilitaries and members of the security forces in return for cooperation.

From BBC • May 1, 2026

Sheinbaum said that Mexico has increased cooperation with the U.S., capturing or killing top kingpins with assistance from U.S. intelligence and law enforcement agencies, but she has rejected direct U.S. involvement in antidrug raids.

From The Wall Street Journal • Apr. 30, 2026

Christopher Jenson, an ICE deportation officer, said that would require Mexico’s cooperation.

From Los Angeles Times • Apr. 30, 2026

Gordon Brown, the prime minister who helped to lead the international response, has said that strong international cooperation is what stopped the crisis from turning into a depression.

From BBC • Apr. 28, 2026

That editor invited Skelton to take part in astronaut testing with the cooperation of NASA, the air force, and the navy.

From "Women in Space" by Karen Bush Gibson

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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