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
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Recent Examples of warn
When more than a month’s worth of rain fell in 90 minutes just west of the United Center late Tuesday night, federal weather forecasters warned of possible flash flooding, triggering a chain of events that alerted some Chicago residents about potential danger.
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William Tong, Chicago Tribune, 14 July 2025
The camp requested that FEMA, the agency responsible for creating maps that help warn Americans where water might rise, remove more than a dozen buildings from what FEMA designates a floodplain at least twice in 2013, 2019 and 2020, the documents show.
—Laura Sullivan, NPR, 13 July 2025
There’s a lot of drama implied in that sentence, so readers should be warned that this story picks up at what may seem—to them, but also (crucially) to Jesse—like the least dramatic part of the narrative.
—Willing Davidson, New Yorker, 13 July 2025
Forecasters are warning that due to torrential rainfall there may be some flooding, along with lightning strikes.
—Devoun Cetoute, Miami Herald, 13 July 2025
See All Example Sentences for warn
William Tong, Chicago Tribune, 14 July 2025
The camp requested that FEMA, the agency responsible for creating maps that help warn Americans where water might rise, remove more than a dozen buildings from what FEMA designates a floodplain at least twice in 2013, 2019 and 2020, the documents show.
—Laura Sullivan, NPR, 13 July 2025
There’s a lot of drama implied in that sentence, so readers should be warned that this story picks up at what may seem—to them, but also (crucially) to Jesse—like the least dramatic part of the narrative.
—Willing Davidson, New Yorker, 13 July 2025
Forecasters are warning that due to torrential rainfall there may be some flooding, along with lightning strikes.
—Devoun Cetoute, Miami Herald, 13 July 2025
See All Example Sentences for warn
Recent Examples of Synonyms for warn
Verb
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Kerrville City Manager Dalton Rice said authorities are committed to a full review of the emergency response, including how the public was alerted to the storm threat.—
Brit Morse,
Fortune,
7 July 2025
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This protection can also alert you to phishing emails and ransomware scams, keeping your personal information and digital assets safe.—
Kurt Knutsson,
FOXNews.com,
5 July 2025
Verb
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The Context Diogo Jose Teixeira da Silva, who went by Diogo Jota, and his brother André died on Thursday while driving from Spain to England after a doctor advised them not to fly after Jota received minor lung surgery.—
Peter Aitken,
MSNBC Newsweek,
5 July 2025
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The Consumer Product Safety Commission advises that children do not use fireworks, including sparklers.—
Kansas City Star,
Kansas City Star,
5 July 2025
Cite this Entry
“Warn.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/warn. Accessed 18 Jul. 2025.
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