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.

They also extended their treaty of "friendly cooperation" as both leaders lauded their countries' special ties.

From Barron's • May 20, 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

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

China, which has stepped up cooperation with regional governments in recent years to crack down on scam networks, has acknowledged the geographical shift.

From Barron's • May 17, 2026

Jess observed that it was the contrast between slaving under a tyrant and voluntary cooperation that arose from determination and good fellowship.

From "Redwall" by Brian Jacques

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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