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
Ridley tries to warn her dad that what’s going on isn’t right, and Elliot finally realizes it late in the game, when the entitled and very bro-y Shepard Leopold (Will Poulter) uses Ridley and the dead foal as bait to capture the other unicorns.
—
Brian Truitt, USA Today, 29 Mar. 2025
Some of the chemicals used to control weeds, crabgrass, and other unwelcome visitors can drift into your neighbor’s yard, leading to the loss of beneficial insects and plants, as well as unpleasant smells, warns Phillips.
—Patricia Shannon, Southern Living, 29 Mar. 2025
But analysts warn the rules are murky and the long-term impact hinges on how aggressively the U.S. enforces content tracking.
—Dan Runkevicius, Forbes.com, 29 Mar. 2025
Boise warns that could be a problem March 10, 2025 3:46 PM
Read Next
Boise & Garden City
Cities can now enforce bans on people sleeping outside.
—Sarah Cutler, Idaho Statesman, 29 Mar. 2025
See All Example Sentences for warn
Brian Truitt, USA Today, 29 Mar. 2025
Some of the chemicals used to control weeds, crabgrass, and other unwelcome visitors can drift into your neighbor’s yard, leading to the loss of beneficial insects and plants, as well as unpleasant smells, warns Phillips.
—Patricia Shannon, Southern Living, 29 Mar. 2025
But analysts warn the rules are murky and the long-term impact hinges on how aggressively the U.S. enforces content tracking.
—Dan Runkevicius, Forbes.com, 29 Mar. 2025
Boise warns that could be a problem March 10, 2025 3:46 PM
Read Next
Boise & Garden City
Cities can now enforce bans on people sleeping outside.
—Sarah Cutler, Idaho Statesman, 29 Mar. 2025
See All Example Sentences for warn
Cite this Entry
“Warn.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/warn. Accessed 2 Apr. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share