WARNER Synonyms: 26 Similar and Opposite Words

warn

verb

ˈwȯrn

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

Synonyms & Similar Words

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Antonyms & Near Antonyms

risk
imperil

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 Though some countries have moved to buffer against the war’s worst impacts — several are considering restarting nuclear reactors for the first time in years — the consequences are likely to be long lasting even if the ceasefire holds, experts warned. —

Jeronimo Gonzalez, semafor.com, 9 Apr. 2026 Continue reading … RIGGED LINES — VA Dem rejects ‘power grab’ claims on Spanberger redistricting as GOP warns 10–1 map would split rural vote. —

FOXNews.com, 9 Apr. 2026 Road closed signs are now in place, warning drivers that it will be shut down beginning on Friday. —

James Taylor, CBS News, 9 Apr. 2026 Iran warned that continued Israeli attacks targeting the militant group Hezbollah in Lebanon could jeopardize the two-day-old truce. —

Nabih Bulos, Los Angeles Times, 9 Apr. 2026 See All Example Sentences for warn

Recent Examples of Synonyms for warn

Verb

After alerting a flight attendant, the woman vanished into the rest room to avoid further entanglement.

— Catherine Lacey, New Yorker, 5 Apr. 2026
The North Carolina State Bureau of Investigation was alerted and is investigating the killing, officials said.

— Mark Price, Charlotte Observer, 4 Apr. 2026