Definitions

warn

[wawrn] / wɔrn /

VERB

give notice of possible occurrence

Synonyms

STRONGEST

address advise alert caution hint inform instruct notify order predict prepare prompt recommend remind signal suggest summon tell threaten urge

STRONG

acquaint admonish advocate apprise clue counsel deprecate direct dissuade enjoin exhort forbid forearm forewarn guide post prescribe remonstrate reprove tip

WEAK

clue in cry wolf fill in give fair warning give the high sign give warning lay it out make aware put on guard tip off wise up

Antonyms

STRONGEST

conceal discourage disorganize dissuade hide ignore prevent

STRONG

allow approve commend compliment laud misguide mislead neglect permit praise withhold

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

They and others warn it makes the government's target of 1.5 million new homes during this Parliament very hard to achieve.

From BBC • Jun. 11, 2026

The more that the likes of Robbins and Sandberg and Witherspoon warn that women miss the AI train at their peril, the more it seems like the new Leaning In.

From Salon • Jun. 10, 2026

UBS analysts keep a buy rating on the stock but warn clients in a note that the consensus forecast of a 90-basis-point margin expansion at CSL’s plasma-product business is too high.

From The Wall Street Journal • Jun. 9, 2026

They warn it could sink prosperity in Switzerland, where large swathes of the economy -- from medical research to construction to healthcare -- depend heavily on foreign labour, primarily from the surrounding EU.

From Barron's • Jun. 9, 2026

“But what I was going to say is that the vet took a gamble with Klawde today, and he lost. You did warn him.”

From "Klawde: Evil Alien Warlord Cat" by Johnny Marciano and Emily Chenoweth

Vocabulary lists containing warn

"The Secret Water"

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"The Black Ferris" by Ray Bradbury

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Tasting the Sky

Want to remember this word for good? Start your learning journey today with our library of interactive, themed word lists built by the experts at Vocabulary.com – we'll help you make the most of your study time!