cooperated

verb

past tense of cooperate
1
as in collaborated
to participate or assist in a joint effort to accomplish an end conservation groups cooperated with state authorities to find a humane way to manage the area's overpopulation of deer

Synonyms & Similar Words

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2
as in united
to form or enter into an association that furthers the interests of its members several industrialized nations cooperated in a trade agreement to reduce or eliminate tariffs

Synonyms & Similar Words

Antonyms & Near Antonyms

Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Recent Examples of cooperated The semi driver was not injured and has cooperated with the investigation. — Kendrick Calfee, Kansas City Star, 25 Sep. 2026 The driver of the Malibu stayed at the scene after police arrived and cooperated with the investigation. — Elizabeth Campbell, Fort Worth Star-Telegram, 21 Sep. 2026 There, Oates cooperated with police, who declined to cite him. — Sharon Bernstein, Sacbee.com, 18 Sep. 2026 Flynn and three other teens who participated in the plot cooperated with prosecutors, and all have since been released. — CBS News, 17 Sep. 2026 Witherspoon pleaded guilty in a separate nursing-school prosecution and cooperated with federal authorities. — Antonio María Delgado, Miami Herald, 16 Sep. 2026 Police say the driver of the second vehicle remained at the scene and cooperated with authorities. — Kelli Arseneau, jsonline.com, 10 Sep. 2026 Shih said the driver stayed at the scene and cooperated with the investigation. — Jason Green, Mercury News, 5 Sep. 2026 The Clippers released a letter sent to Silver arguing Ballmer spent nearly $50 million funding the investigation and cooperated in every way possible. — Steve Henson, Los Angeles Times, 2 Sep. 2026
Recent Examples of Synonyms for cooperated
  1. collaborated
  2. united
  3. federated
  4. allied
  5. merged
Verb
  • It’s not known which artist helped craft her Sunday night aesthetic; however, the Grammy-winning singer-songwriter has famously collaborated with visionary Lorrie Turk.
    — Kaleigh Werner, Footwear News, 27 Sep. 2026
  • With his former bandmate Grohl, Novoselic has collaborated on several songs for Foo Fighters, the band Grohl started in 1994.
    — Julie Tremaine, PEOPLE, 27 Sep. 2026
Definition of collaborated
Verb
  • The Tkachuk bothers have united in Florida, which could give the league a marketing opportunity that breaks through to more casual sports fans who don’t follow the NHL on a regular basis.
    — Scott Soshnick, Sportico.com, 29 Sep. 2026
  • And recent independent polling shows that the measure does appeal strongly to Republicans — but not Democrats, who are united in opposition.
    — Los Angeles Times, Los Angeles Times, 28 Sep. 2026
Definition of united
Verb
  • The nonprofit Ebell Club was chartered and federated on March 9, 1984, and since that time, members have raised more than $300,000 for numerous philanthropies both within the community and national organizations.
    — Sharon Hlapcich, Oc Register, 17 Feb. 2026
  • The order covers federated IT systems and mission platforms across all services.
    — Aamir Khollam, Interesting Engineering, 13 Jan. 2026
Definition of federated
Verb
  • But expanding domestic and allied capacity to manufacture the most critical medicines and ingredients — and maintain adequate strategic reserves — would dramatically reduce China’s leverage in any future crisis.
    — Patrick McHenry, STAT, 30 Sep. 2026
  • Just days before, the TPLF publicly allied with other Ethiopian armed groups aiming to overthrow the federal government.
    — Adrian Elimian, semafor.com, 28 Sep. 2026
Definition of allied
Verb
  • Privately, even with layoffs looming once the companies are merged, the ambitious Democrats were wobbly kneed in this corporate game of chicken that MAGA-friendly Ellison would leave them holding the bag jut before the midterms.
    — Dominic Patten, Deadline, 24 Sep. 2026
  • The company says the design came from an internal competition at Renault Design that drew more than 300 sketches, eventually narrowed to two scale models that were merged into the final shape.
    — New Atlas, New Atlas, 24 Sep. 2026
Definition of merged

Browse Nearby Words

cooperate
cooperated
cooperated (with)
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Cite this Entry

“Cooperated.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/cooperated. Accessed 4 Oct. 2026.

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