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.

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

Analysts warn that a severe El Niño could raise global food commodity prices by up to 9%.

From MarketWatch • Jun. 8, 2026

The researchers also warn that amoebae can act as living shelters for other harmful microbes.

From Science Daily • Jun. 6, 2026

SpaceX amended its IPO prospectus to warn investors that access to water is becoming a concern for the company.

From Barron's • Jun. 5, 2026

“Now, please, silence may be the wiser choice. We do not wish to warn whatever took her that we are hunting it.”

From "Half Upon a Time" by James Riley

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!