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
The government has warned of a holiday travel meltdown.
—
Zachary Schermele, USA Today, 26 Oct. 2025
Swimming in the crystal-clear water is another must, although Chavez warns that the river stays around 54 degrees Fahrenheit year-round.
—Evie Carrick, Travel + Leisure, 25 Oct. 2025
Evan Thompson, Director of the Meteorological Service of Jamaica, warned Melissa could be worse than previous major storms that battered the island, such as Hurricane Wilma in 2005.
—Kristin Wright, NPR, 25 Oct. 2025
Experts have warned that aftershocks and additional strong earthquakes are likely to continue, according to a USGS forecast published soon after the July event, which projected a 24 percent chance of another magnitude 7 or higher earthquake in the months following.
—Hollie Silverman, MSNBC Newsweek, 25 Oct. 2025
See All Example Sentences for warn
Zachary Schermele, USA Today, 26 Oct. 2025
Swimming in the crystal-clear water is another must, although Chavez warns that the river stays around 54 degrees Fahrenheit year-round.
—Evie Carrick, Travel + Leisure, 25 Oct. 2025
Evan Thompson, Director of the Meteorological Service of Jamaica, warned Melissa could be worse than previous major storms that battered the island, such as Hurricane Wilma in 2005.
—Kristin Wright, NPR, 25 Oct. 2025
Experts have warned that aftershocks and additional strong earthquakes are likely to continue, according to a USGS forecast published soon after the July event, which projected a 24 percent chance of another magnitude 7 or higher earthquake in the months following.
—Hollie Silverman, MSNBC Newsweek, 25 Oct. 2025
See All Example Sentences for warn
Recent Examples of Synonyms for warn
Verb
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Officers brought the 12-year-old to the Copperas Cove Police Department and alerted Child Protective Services (CPS), according to the complaint.—
Bailey Richards,
PEOPLE,
26 Oct. 2025
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This Navfalcon Hidden Camera Detector has earned a permanent spot in my travel bag; this gadget picks up the radio frequency (RF) signals that are emitted by cameras and alerts you when these wireless signals have been detected.—
Amelia McBride,
Travel + Leisure,
26 Oct. 2025
Verb
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Drivers are advised to slow down, use caution, and carry winter emergency kits, while outdoor enthusiasts are being warned to prepare for rapidly changing and potentially dangerous weather conditions.—
Martha McHardy,
MSNBC Newsweek,
25 Oct. 2025
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Springer advised his teammates simply to be themselves.—
Ken Rosenthal,
New York Times,
25 Oct. 2025
Cite this Entry
“Warn.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/warn. Accessed 29 Oct. 2025.
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