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.

And the survey found overwhelming support for deeper EU cooperation on defence and security, with 81 percent backing a common policy in the area -- the highest level in 20 years.

From Barron's • May 8, 2026

Both sides saw an opportunity to pursue deals on critical minerals, rare-earth supply chains and cooperation on transnational crime.

From The Wall Street Journal • May 7, 2026

The memorial also signifies Pyongyang's willingness to continue military cooperation with Russia "regardless of how the war unfolds".

From BBC • May 7, 2026

Araqchi told Wang that cooperation between China and Iran would become even stronger, said Iranian state media.

From BBC • May 6, 2026

The movement of the stars across the night, the cooperation of humors in the blood.

From "The Underground Railroad: A Novel" by Colson Whitehead

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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