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

Relevance

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 scholars argue that decisions involving life and human dignity must remain in human hands, warning that AI systems capable of selecting and executing targets fundamentally alter the moral nature of war. Sharon Goldman, Fortune, 19 Mar. 2026 McDonagh’s skill at crisp dialogue and character in his movies is evident in the opening scene for the teaser trailer where Chris boasts of his body count as an assassin worldwide, which has Lee warning against talk of killing people on an airplane. Etan Vlessing, HollywoodReporter, 19 Mar. 2026 However, the issue is that these attributes have been flattened into something far more superficial and inaccurate, relationship experts warn. Jenna Ryu, SELF, 19 Mar. 2026 Karachi Mayor Murtaza Wahab urged residents to stay indoors and avoid unnecessary movement, warning that many trees had fallen and crews were working to clear roads. ABC News, 19 Mar. 2026 See All Example Sentences for warn
Recent Examples of Synonyms for warn
Verb
  • The woman yelled at the man which alerted store staff, per the affidavit.
    Logan Smith, CBS News, 22 Mar. 2026
  • Officials are increasingly redirecting their Telegram audiences there, with one regional governor alerting Ukrainian drone attacks only on MAX.
    Yuliya Talmazan, NBC news, 22 Mar. 2026
Verb
  • Riders are advised to use alternative services, including the #22 Clark and #36 Broadway bus routes.
    CBS Chicago Team, CBS News, 23 Mar. 2026
  • If symptoms suggest a possible emergency, the system may advise you to contact emergency services, such as calling 911.
    Kurt Knutsson, FOXNews.com, 22 Mar. 2026

Browse Nearby Words

Cite this Entry

“Warn.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/warn. Accessed 24 Mar. 2026.

More from Merriam-Webster on warn

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster