Definitions

cooperate

[koh-op-uh-reyt] / koʊˈɒp əˌreɪt /

VERB

work with; assist

Synonyms

STRONGEST

aid assist collaborate comply with conspire contribute coordinate further help participate unite uphold

STRONG

abet advance agree band befriend coincide combine concert concur conduce espouse forward league partner second succor

WEAK

back up be in cahoots chip in coadjute give-and-take go along with join forces join in lend a hand pitch in play ball pool resources pull together share in show willingness side with stick together take part work side by side work together

Antonyms

STRONGEST

block check counteract disagree harm hinder hurt obstruct oppose protest stop

STRONG

differ halt impede reject

WEAK

delay disturb encumber prevent

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.

Different species can cooperate in surprisingly diverse situations.

From Science Daily • Jun. 20, 2026

Glico said: "We will respond in good faith to the Fair Trade Commission's investigation and cooperate fully."

From BBC • Jun. 17, 2026

The regulator added that it had asked participating banks to actively cooperate with the effort.

From The Wall Street Journal • Jun. 8, 2026

They also establish a strict obligation for migrants subject to expulsion to leave and cooperate with authorities, envisaging harsher penalties, including detention, for those who refuse to do so.

From Barron's • Jun. 1, 2026

The face was like a ghost—sticky atoms refusing to give way and cooperate with the will of the knackery.

From "100 Sideways Miles" by Andrew Smith

Vocabulary lists containing cooperate

UCPS 6th Grade Roots List #1

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Divergent

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Chapter 28: The Cold War Era

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