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.

Mizuho’s Klein went on to warn that the rally “feels bound to end in tears.”

From Barron's • Apr. 9, 2026

Many times I’m driving through the city, and I think of her words — she was trying to warn us.

From Los Angeles Times • Apr. 9, 2026

Iranian hackers are targeting US energy and water sectors, federal agencies warn.

From MarketWatch • Apr. 8, 2026

But analysts warn that a huge degree of uncertainty remains, and that the truce is fragile.

From The Wall Street Journal • Apr. 8, 2026

“I’ll warn you, Karl,” I chattered, “I’ve turned these two into card sharks. Corrupted them with coffee, too.”

From "Hattie Big Sky" by Kirby Larson