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
On Thursday, the Supreme Court ruled 7-2 in favor of Bayer’s Monsanto, the maker of the powerful weedkiller Roundup, shielding it from thousands of state lawsuits that allege the company failed to warn people the product could cause cancer.
—
Los Angeles Times,
26 June 2026
Critics warn the measure could spook some of California’s highest earners into moving out of fear of future taxes, jeopardizing the state’s long-term fiscal health.
—
Ben Paviour,
Sacbee.com,
26 June 2026
However, Iran’s Islamic Revolutionary Guard Corps Navy on Thursday warned that safe passage through the Strait of Hormuz would only be permitted via routes designated by Tehran, highlighting that risks to the key shipping lane remain.
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Lee Ying Shan,
CNBC,
25 June 2026
The company warns, in the muffled prose of a risk factor, that a credit downgrade could push up its borrowing costs and even change the terms of its data-center leases.
—
Dara-Abasi Ita,
Forbes.com,
25 June 2026
See All Example Sentences for warn
Los Angeles Times,
26 June 2026
Critics warn the measure could spook some of California’s highest earners into moving out of fear of future taxes, jeopardizing the state’s long-term fiscal health.
—
Ben Paviour,
Sacbee.com,
26 June 2026
However, Iran’s Islamic Revolutionary Guard Corps Navy on Thursday warned that safe passage through the Strait of Hormuz would only be permitted via routes designated by Tehran, highlighting that risks to the key shipping lane remain.
—
Lee Ying Shan,
CNBC,
25 June 2026
The company warns, in the muffled prose of a risk factor, that a credit downgrade could push up its borrowing costs and even change the terms of its data-center leases.
—
Dara-Abasi Ita,
Forbes.com,
25 June 2026
See All Example Sentences for warn
Recent Examples of Synonyms for warn
Verb
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The plot was foiled when a suspect’s mother alerted police, court documents said.
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Illinois state and local law enforcement are prohibited from alerting, let alone assisting, immigration agents seeking to detain someone unless a judge has issued an arrest warrant for the subject.
Verb
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Its drone warfare teams are now advising NATO nations (and regularly beating them in war game simulations).
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Authorities advised sensitive groups, including children, older adults and people with heart or lung conditions, to limit prolonged outdoor activity as smoke levels increase.
Cite this Entry
“Warn.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/warn. Accessed 27 Jun. 2026.
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