warn

warn

verb

Definition of WARN

to give notice to beforehand especially of danger or risk <the lifeguard warned the boys that if they continued playing so rough, someone was sure to get hurt>

Synonyms advise, alert, caution, forewarn, wake

Related Words augur, forecast, foretell, harbinger, predict, presage, prognosticate, prophesy; apprise, inform, notify, tip (off); admonish; bode, forebode (also forbode), foreshadow, foretoken, portend

Near Antonyms imperil, risk