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 Finally, the Court’s religion cases have historically warned against discrimination among different religious faiths. Ian Millhiser, Vox, 28 Jan. 2025 The military has warned people to stay away from its forces, which still operate in a buffer zone inside Gaza along the border and in the Netzarim corridor. Wafaa Shurafa, Samy Magdy, TIME, 27 Jan. 2025 Environmental groups warned the order could hasten ecological collapse in the Sacramento-San Joaquin River Delta. Ari Plachta, Sacramento Bee, 27 Jan. 2025 Dangerous fire conditions are expected to return next week, the National Weather Service warned. Minyvonne Burke, NBC News, 17 Jan. 2025 See all Example Sentences for warn 

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“Warn.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/warn. Accessed 31 Jan. 2025.

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