cooperate
verb
co·op·er·ate
kō-ˈä-pə-ˌrāt 
cooperated; cooperating; cooperates
1
: to act or work with another or others : act together or in compliance
refused to cooperate with the police
2
: to associate with another or others for mutual benefit
nations cooperating to fight terrorism
Examples of cooperate in a Sentence
It will be much easier if everyone cooperates.
Several organizations cooperated in the relief efforts.
The country agreed to cooperate with the other nations on the trade agreement.
The mother asked the child to put on his pajamas, but the child refused to cooperate.
Witnesses were willing to cooperate.
Recent Examples on the Web
But this is sometimes a problem, as my wireless earbuds and headphones don't always cooperate with whatever outdated seatback entertainment systems exist on that flight.
—
Aly Walansky, Travel + Leisure, 29 May 2026
Prosecutors have alleged that the men killed Vega to prevent her from cooperating with authorities or as retaliation for cooperating.
—Tim Stelloh, NBC news, 28 May 2026
Young children, particularly those under age 10, are least able to cooperate during MRI procedures, requiring medical staff to use anesthesia to complete a scan, Eghbal said.
—Mona Darwish, Oc Register, 28 May 2026
And licensed sportsbooks and casinos must cooperate with states on self-exclusion lists, where people can ask that they be blocked from physically entering casinos or signing up for online gaming apps.
—Elisabeth Buchwald, CNN Money, 28 May 2026
See All Example Sentences for cooperate
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Aly Walansky, Travel + Leisure, 29 May 2026
Prosecutors have alleged that the men killed Vega to prevent her from cooperating with authorities or as retaliation for cooperating.
—Tim Stelloh, NBC news, 28 May 2026
Young children, particularly those under age 10, are least able to cooperate during MRI procedures, requiring medical staff to use anesthesia to complete a scan, Eghbal said.
—Mona Darwish, Oc Register, 28 May 2026
And licensed sportsbooks and casinos must cooperate with states on self-exclusion lists, where people can ask that they be blocked from physically entering casinos or signing up for online gaming apps.
—Elisabeth Buchwald, CNN Money, 28 May 2026
See All Example Sentences for cooperate
Cite this Entry
“Cooperate.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cooperate. Accessed 30 May. 2026.
Copy CitationKids Definition
cooperate
verb
co·op·er·ate
kō-ˈäp-(ə-)ˌrāt
cooperated; cooperating
: to act, work, or associate with others so as to get something done
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