Definition of warnnext
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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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 County Superintendent David Gordon also warned that the withdrawal was not free money, saying the district would eventually need to replenish the trust to cover retiree health costs. Chaewon Chung updated August 27, Sacbee.com, 27 Aug. 2026 And any dampened demand for popular tech risks further limiting innovation while seemingly working in lockstep with tariffs to slow AI adoption in the US, the letter warned. Ashley Belanger, ArsTechnica, 27 Aug. 2026 On Monday, Iran’s Foreign Ministry pointed to US refueling aircraft leaving Bulgarian territory, warning that Tehran could target the European Union nation, which is also a NATO member. Mostafa Salem, CNN Money, 27 Aug. 2026 The sums involved today dwarf even the spending Wigglesworth was warning about more than 20 years ago. Mia Osmonbekov, Fortune, 27 Aug. 2026 See All Example Sentences for warn
Recent Examples of Synonyms for warn
Verb
  • Bonds, who carries the BRCA gene, remembers going to a waiting room and being handed a beeper that would alert her when a doctor was ready.
    Eileen Finan, PEOPLE, 26 Aug. 2026
  • LifeLock's identity and financial monitoring features can alert you to certain signs of identity theft, while its restoration services can help if your information is misused.
    Andreina Rodriguez, CNBC, 26 Aug. 2026
Verb
  • Weather officials also advise applying sunscreen every two hours and avoiding alcohol when hot out.
    Finnegan Belleau, Chicago Tribune, 31 Aug. 2026
  • John Watson, the influential psychologist, advised parents not to hug or kiss their children.
    Andrew Silow-Carroll, Sun Sentinel, 31 Aug. 2026

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Cite this Entry

“Warn.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/warn. Accessed 1 Sep. 2026.

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