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
Newsom, for his part, has also warned that California won’t be the last state to see troops in the streets if Trump gets his way.
—
Sara Braun, Fortune, 21 June 2025
Nuclear experts have warned against any attack on nuclear facilities, but the radiation dispersal risk of striking Fordo appears to be limited.
—Samuel Granados, New York Times, 20 June 2025
Scientists have warned that Erick could become the most intense hurricane along Mexico’s Pacific coast this early in the season.
—Aida Pelaez-Fernandez, USA Today, 20 June 2025
The Federal Emergency Management Agency offers tools to help assess your home’s flood risk, but an article published by Yale Climate Connections warns that FEMA floodplain maps are outdated.
—Matthew Adams, Fort Worth Star-Telegram, 20 June 2025
See All Example Sentences for warn
Sara Braun, Fortune, 21 June 2025
Nuclear experts have warned against any attack on nuclear facilities, but the radiation dispersal risk of striking Fordo appears to be limited.
—Samuel Granados, New York Times, 20 June 2025
Scientists have warned that Erick could become the most intense hurricane along Mexico’s Pacific coast this early in the season.
—Aida Pelaez-Fernandez, USA Today, 20 June 2025
The Federal Emergency Management Agency offers tools to help assess your home’s flood risk, but an article published by Yale Climate Connections warns that FEMA floodplain maps are outdated.
—Matthew Adams, Fort Worth Star-Telegram, 20 June 2025
See All Example Sentences for warn
Recent Examples of Synonyms for warn
Verb
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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,
24 June 2025
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For example, if a vehicle backs up straight toward an ATM instead of driving normally, AI could detect this and trigger responses like alerting employees, sounding alarms or shutting down machines.—
Stuart Mackinnon,
Forbes.com,
24 June 2025
Verb
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The final decision about Iran's response will be made by Khamenei; the parliament's vote to close the strait merely advises him of the option to pursue.—
Adeola Adeosun,
MSNBC Newsweek,
23 June 2025
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Brown’s 1962 how-to guide for modern single women to dominate both in relationships and at the office was radical in one way, advising women to cherish being single rather than seeing it as a sign of their deficiency.—
Alice Bolin
June 23,
Literary Hub,
23 June 2025
Cite this Entry
“Warn.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/warn. Accessed 29 Jun. 2025.
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