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.

She said she wanted to warn other dog owners in Rhosneigr to look out for adders, which pose a particular risk to dogs in the warmer months, according to the Amphibian and Reptile Conservation.

From BBC • Apr. 24, 2026

But experts warn the playing field could become more uneven.

From MarketWatch • Apr. 24, 2026

He would also hold two moonshot pay packages, which corporate-governance experts warn could motivate him to devote most of his time and energy to whichever seems most likely to pay off.

From The Wall Street Journal • Apr. 23, 2026

Oil analysts warn that transit through the waterway could still take months to return to normal.

From Barron's • Apr. 23, 2026

“No need to warn us about the wolves, Timothy. From what we’ve been told, they are friendly as can be.”

From "The Long-Lost Home" by Maryrose Wood

Vocabulary lists containing warn

"The Secret Water"

Looking to grow your vocabulary? Check out this interactive, curated word list from our team of English language specialists at Vocabulary.com – one of over 17,000 lists we've built to help learners worldwide!

"The Black Ferris" by Ray Bradbury

Interested in learning more words like this one? Our team at Vocabulary.com has got you covered! You can review flashcards, quiz yourself, practice spelling, and more – and it's all completely free to use!

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!