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.

Dr. Clarke said the findings highlight a level of planning and cooperation that may have been greater than previously recognized.

From Science Daily • Jun. 9, 2026

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

From Barron's • Jun. 9, 2026

"Armenian people voted for peace, regional prosperity and cooperation," he said.

From BBC • Jun. 8, 2026

The Elysee official said France believed that defence and security cooperation between the two countries was necessary.

From Barron's • Jun. 8, 2026

A statement in a legal document will be interpreted adversarially, without the presumption of cooperation that governs an ordinary conversation, so every exception must be spelled out.

From "The Sense of Style" by Steven Pinker

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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