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.

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

Industry executives warn that overly strict local-content requirements could discourage investment, while overly lax rules could leave Brazil exporting raw materials and missing out on higher-value processing.

From The Wall Street Journal • Jun. 9, 2026

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

“I tried to warn you,” he said, his voice wavering.

From "Night Owls" by A.R. Vishny

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!