warn

verb

ˈwȯrn How to pronounce warn (audio)
Definition of warnnext
as in to alert
to give notice to beforehand especially of danger or risk the lifeguard warned the boys that if they continued playing so rough, someone was sure to get hurt

Synonyms & Similar Words

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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 warn The doctors’ group, Protect Young Fans, warns of the potential health risks posed by highly caffeinated drinks like Monster Energy, particularly to children and adolescents, citing a growing body of scientific research across the medical spectrum. — Daniel Libit, Sportico.com, 3 Sep. 2026 Still, some warned that this uptick did not mean Japan’s population decline was close to being reversed. — Marco Quiroz-Gutierrez, Fortune, 3 Sep. 2026 On Tuesday, Zelensky ominously warned airlines in Russia that the risks could continue. — Dasha Litvinova, Los Angeles Times, 3 Sep. 2026 Some Republicans are warning the convention could backfire in battleground races. — Joey Garrison, USA Today, 3 Sep. 2026 See All Example Sentences for warn
Recent Examples of Synonyms for warn
  1. alert
  2. advise
Verb
  • Multi-State Insights — law enforcement is alerted when suspect vehicles are detected across multiple states.
    — Mateo Rosiles, USA Today, 2 Sep. 2026
  • An employee at the home alerted the director, who notified police on June 25.
    — Robert McCoppin, Chicago Tribune, 1 Sep. 2026
Definition of alert
Verb
  • Weather officials also advise applying sunscreen every two hours and avoiding alcohol when hot out.
    — Finnegan Belleau, Chicago Tribune, 31 Aug. 2026
  • John Watson, the influential psychologist, advised parents not to hug or kiss their children.
    — Andrew Silow-Carroll, Sun Sentinel, 31 Aug. 2026
Definition of advise

Browse Nearby Words

warm-ups
warn
warned
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Cite this Entry

“Warn.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/warn. Accessed 4 Sep. 2026.

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