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
Many astronomical objects play by clear rules and fit into neat categories, but brown dwarfs (celestial objects too massive to be mere planets, but too small to be real stars) continue to refuse to cooperate.
—
Kiona N. Smith, Space.com, 2 Mar. 2026
The driver remained on scene and was cooperating with law enforcement.
—Karen Kucher, San Diego Union-Tribune, 2 Mar. 2026
Closure finally feels possible as Luna in your pensive 12th house cooperates with tender Chiron in your 8th House of Delicate Topics.
—Tarot.com, Baltimore Sun, 1 Mar. 2026
In a later plea deal with prosecutors, Ament pleaded guilty to submitting a false tax return, lying to a mortgage lender and to two counts of wire fraud, and agreed to cooperate with the federal government’s ongoing investigation.
—Victoria Le, Oc Register, 28 Feb. 2026
See All Example Sentences for cooperate
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Kiona N. Smith, Space.com, 2 Mar. 2026
The driver remained on scene and was cooperating with law enforcement.
—Karen Kucher, San Diego Union-Tribune, 2 Mar. 2026
Closure finally feels possible as Luna in your pensive 12th house cooperates with tender Chiron in your 8th House of Delicate Topics.
—Tarot.com, Baltimore Sun, 1 Mar. 2026
In a later plea deal with prosecutors, Ament pleaded guilty to submitting a false tax return, lying to a mortgage lender and to two counts of wire fraud, and agreed to cooperate with the federal government’s ongoing investigation.
—Victoria Le, Oc Register, 28 Feb. 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 6 Mar. 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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