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.

“The Department is and will continue to fully cooperate with an ongoing external law enforcement investigation.”

From Los Angeles Times • May 28, 2026

After losing the suit, Johnson did not cooperate with efforts to track down his claimed assets and was found in contempt of court.

From Slate • May 28, 2026

"While we cooperate to deal with illegal and irregular mobility, our expectation is that legal mobility should not be adversely impacted as a consequence," he said, noting that visas were key for US-India tech cooperation.

From Barron's • May 24, 2026

A spokesperson for the Andic family said Jonathan is giving testimony and would cooperate with the investigation.

From The Wall Street Journal • May 19, 2026

“If I cooperate, I get to see the scan.”

From "Insurgent" by Veronica Roth

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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