How to Use warn in a Sentence

warn

verb
  • She warned us not to go too close to the fire.
  • She warned me that the stove was still hot.
  • I had been warned about the difficulties of the job.
  • Nobody warned me about the dangers.
  • I warned him to be careful, but he didn't listen to me.
  • Potter warned that could be pricey.
    Zach Wichter, USA Today, 27 Apr. 2026
  • But then again, you readers did try to warn me.
    Sean McIndoe, New York Times, 9 Feb. 2026
  • But — critics have warned — there's a lot of fine print.
    Frank Witsil, Freep.com, 3 Sep. 2025
  • Pidich also warned against too-tight boots that don’t leave room for socks.
    Jaden Thompson, Footwear News, 1 Oct. 2025
  • Experts warn that stormy weather may be on the way.
    Sally Krutzig, Idaho Statesman, 24 May 2026
  • Her debaters warned of a slippery slope.
    Abby McCloskey, Twin Cities, 29 Oct. 2025
  • Be on the lookout for ticks, experts warned.
    Don Sweeney, Sacbee.com, 18 May 2026
  • The vice president then warned that her threat wasn’t a joke.
    Jim Gomez, Los Angeles Times, 11 May 2026
  • Researchers warn of emerging risks tied to short-form video.
    Kaan Ozcan, NBC news, 29 Mar. 2026
  • The cost is a factor, though, others warned.
    Craig Shoup, Nashville Tennessean, 1 Oct. 2025
  • But be warned, these adorable miniature treats will be gone in seconds.
    Pam Lolley, Southern Living, 11 Nov. 2023
  • Tisch warned bystanders not to approach him.
    Michael Ruiz, FOXNews.com, 9 Sep. 2025
  • In hindsight, there were warning signs.
    Gary Baum, HollywoodReporter, 3 Sep. 2025
  • Mamdani warned that this weekend's storm could be worse for the city than the last.
    Mirna Alsharif, NBC news, 21 Feb. 2026
  • This is not the first time Half Moon Bay has been warned.
    Ryan MacAsero, Mercury News, 29 Mar. 2026
  • Adams sprints to the OR to warn that the (very flammable) gas is in the air.
    Randall Colburn, EW.com, 16 May 2025
  • Magic Erasers will scratch or dull that in no time, warns Liles.
    Quincy Bulin, Southern Living, 17 Sep. 2025
  • Critics warn that higher taxes on the wealthy will drive them away.
    Tiffany Caban, New York Daily News, 8 Mar. 2026
  • Experts warn prices for many grocery store items will rise as a result.
    Danny Freeman, CNN, 5 Mar. 2025
  • And public health officials warn the worst might still be weeks away.
    J. Scott Trubey, ajc, 1 Jan. 2022
  • But Drury warns that consumers shouldn't just focus on price alone.
    Susan Tompor, Freep.com, 15 Oct. 2025
  • Knoepfler warned of placebo effects.
    Dhruv Khullar, New Yorker, 6 Apr. 2026
  • The uncle warned him that there were too many sharks in that vicinity.
    David Chiu, PEOPLE, 7 July 2026
  • Prosecutors have warned that more charges may be filed in the case.
    Garrett Downs, CNBC, 3 May 2026
  • Buck warns that any work sent home cannot be verified as the student’s work.
    Asuka Koda, CNN Money, 4 Apr. 2026

Some of these examples are programmatically compiled from various online sources to illustrate current usage of the word 'warn.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

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