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.

Experts warn mega IPOs like SpaceX may dampen market returns, mute multiple expansion, and dilute existing AI stock valuations.

From Barron's • Jun. 9, 2026

South Australia is home to a booming koala population, but researchers warn that this apparent conservation success could eventually turn into a serious problem.

From Science Daily • Jun. 8, 2026

Investors hoping for a rebound will have to wait until next year or the year after, they warn.

From MarketWatch • Jun. 5, 2026

Music fan Alex Milsom tells BBC Newsbeat the festival did warn that rain was forecast, but says there was a lack of communication during the day.

From BBC • Jun. 5, 2026

There was no way to warn Fred Koornstra.

From "The Hiding Place" by Corrie ten Boom

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!