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.

He also called for expanded economic cooperation, citing the recent reopening of border crossings and transport links.

From Barron's • Jun. 9, 2026

The French and German defence ministries are set to draw up a plan for defence cooperation "focused on a few realistic and relevant projects" at a forthcoming meeting, the official added.

From Barron's • Jun. 8, 2026

The tensions between the U.S. and Israel are becoming a defining characteristic of the current phase of the war, much as unprecedented close cooperation between the two allies marked its beginning.

From The Wall Street Journal • Jun. 8, 2026

But, he adds, expanding military cooperation between Russia and North Korea could spark a stronger trilateral military response from the US, Japan and South Korea, which would worry Beijing.

From BBC • Jun. 7, 2026

The Nationalists also rejected interracial cooperation, and both the National Party and the American State Department saw fit to exaggerate the size and importance of the new organization for their own ends.

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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