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.

Their mother made Jerry her health proxy and Arnold the executor of her will, forcing in effect their cooperation.

From Los Angeles Times • Jun. 3, 2026

"We ask for your cooperation in creating a city where everyone can enjoy themselves comfortably."

From BBC • Jun. 1, 2026

In April, Mr. Lee’s defense minister discussed bilateral defense cooperation with China’s ambassador to South Korea.

From The Wall Street Journal • Jun. 1, 2026

Luckin said at the time the settlement “reflects our cooperation and remediation efforts, and enables the company to continue with the execution of its business strategy.”

From Barron's • Jun. 1, 2026

Apart from its wrong-headedness, Neville’s speech was entirely contrary to the climate of cooperation between organizations we were trying to create on the island.

From "Long Walk to Freedom" by Nelson Mandela

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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