n. 25B6; noun
the earthquake came without warning : (ADVANCE) NOTICE, forewarning, alert; hint, signal, sign, alarm bells; informal a tip-off.
a health warning : CAUTION, notification, information; exhortation, injunction; advice.
a warning of things to come : OMEN, premonition, foreboding, prophecy, prediction, forecast, token, portent, signal, sign; poetic/literary foretoken.
his sentence is a warning to other drunk drivers : EXAMPLE, deterrent, lesson, caution, exemplar, message, moral.
a written warning : ADMONITION, caution, remonstrance, reprimand, censure; informal dressing-down, talking-to, telling-off.