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.

Xi said cooperation between Russia and China had "continuously deepened and solidified", according to Chinese state media.

From Barron's • May 19, 2026

And pretrial and posttrial diversion programs — where someone undergoes treatment in lieu of incarceration — would also need the cooperation of the court system, which the mayor does not control.

From Los Angeles Times • May 19, 2026

Together, we have the chance to draw on these values to create a future of greater prosperity, cooperation and happiness and peace for our children,” Trump added.

From Los Angeles Times • May 17, 2026

"The Chinese government attaches great importance to this trend," the embassy said in a statement, pledging closer cooperation with Sri Lankan law enforcement agencies.

From Barron's • May 17, 2026

“I’m not trying to blame you, Gilly. It’s just that I need, we all need, your cooperation if any kind of arrangement is to work out.”

From "The Great Gilly Hopkins" by Katherine Paterson

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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