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
But the company warned that higher gas prices due to the Iran war likely impacted fast-food traffic in March.
—
Dee-Ann Durbin, Fortune, 2 Apr. 2026
The issuer can redeem it early, usually when interest rates fall, cutting off your higher-yielding income without warning.
—Encyclopedia Britannica, 2 Apr. 2026
SpaceX had warned ahead of launch that parts of Central Florida could experience one or more sonic booms.
—Richard Tribou, The Orlando Sentinel, 2 Apr. 2026
Oil executives and analysts warn that the Iran war disruption is already bigger than the markets understand and prices are unlikely to return to pre-war levels soon.
—Dylan Butts, CNBC, 30 Mar. 2026
See All Example Sentences for warn
Dee-Ann Durbin, Fortune, 2 Apr. 2026
The issuer can redeem it early, usually when interest rates fall, cutting off your higher-yielding income without warning.
—Encyclopedia Britannica, 2 Apr. 2026
SpaceX had warned ahead of launch that parts of Central Florida could experience one or more sonic booms.
—Richard Tribou, The Orlando Sentinel, 2 Apr. 2026
Oil executives and analysts warn that the Iran war disruption is already bigger than the markets understand and prices are unlikely to return to pre-war levels soon.
—Dylan Butts, CNBC, 30 Mar. 2026
See All Example Sentences for warn
Recent Examples of Synonyms for warn
Verb
-
The California Highway Patrol said its officers were alerted by the San Francisco Police Department that a large group of bicyclists was riding through the streets recklessly and were believed to be heading to the Bay Bridge, with the intent of taking over the bridge.—
Brandon Downs,
CBS News,
29 Mar. 2026
-
Local media reported the bodies were transported in a government vehicle by unidentified individuals and buried hastily, with some gravediggers later alerting police.—
Greg Wehner,
FOXNews.com,
29 Mar. 2026
Verb
-
This was, after all, the woman who had advised me not to hold her hand on the way to fifth grade because doing so would only increase my social isolation.—
Lena Dunham,
New Yorker,
30 Mar. 2026
-
A week after the crash, police are advising anyone drinking to either call a friend or use a rideshare to get home safely.—
Heath Kalb,
CBS News,
30 Mar. 2026
Cite this Entry
“Warn.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/warn. Accessed 3 Apr. 2026.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
