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
Advertisement Economiesuisse, Switzerland’s largest business federation, has also objected to the proposal, warning that limiting immigration could lead to labor shortages especially for healthcare, research and service industries that depend on foreign labor.
—
Miranda Jeyaretnam, Time, 30 Apr. 2026
Fox News commentator Raymond Arroyo warned the public about the dangers of the language lesson, likening it to a gateway drug to Islam.
—Lorraine Ali, Los Angeles Times, 30 Apr. 2026
However, despite the deluge of social media posts from hair transplant recipients, including Huffman, the International Society of Hair Restoration Surgery warns that many Turkish hair clinics are unlicensed and lack proper medical oversight.
—Tribune News Service, Baltimore Sun, 30 Apr. 2026
The Centers for Disease Control and Prevention warned this week that additional measles cases in the United States can be expected in the coming months as the busy summer travel season approaches.
—Thao Nguyen, USA Today, 30 Apr. 2026
See All Example Sentences for warn
Miranda Jeyaretnam, Time, 30 Apr. 2026
Fox News commentator Raymond Arroyo warned the public about the dangers of the language lesson, likening it to a gateway drug to Islam.
—Lorraine Ali, Los Angeles Times, 30 Apr. 2026
However, despite the deluge of social media posts from hair transplant recipients, including Huffman, the International Society of Hair Restoration Surgery warns that many Turkish hair clinics are unlicensed and lack proper medical oversight.
—Tribune News Service, Baltimore Sun, 30 Apr. 2026
The Centers for Disease Control and Prevention warned this week that additional measles cases in the United States can be expected in the coming months as the busy summer travel season approaches.
—Thao Nguyen, USA Today, 30 Apr. 2026
See All Example Sentences for warn
Recent Examples of Synonyms for warn
Verb
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Airline staff alerted officers on Thursday Police said the department's Narcotics Unit maintains a presence at Love Field to prevent drug trafficking through the airport.—
Doug Myers,
CBS News,
2 May 2026
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If needed, these personal alarms can be used to ward off threats, including people or animals, and serve to alert nearby rescue teams.—
Louise Parks,
Martha Stewart,
1 May 2026
Verb
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Duffy also advised passengers to consider credit card chargebacks, travel insurance claims or bankruptcy filings for additional recovery options.—
Emma Tucker,
CNN Money,
3 May 2026
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My satiric letter advised parents to teach their children to settle disputes with hockey sticks, like their favorite hockey players.—
Sun Sentinel Editorial Board,
Sun Sentinel,
3 May 2026
Cite this Entry
“Warn.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/warn. Accessed 6 May. 2026.
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