Warning

noun
1.
the act or utterance of one who warns or the existence, appearance, sound, etc., of a thing that warns.
2.
something that serves to warn, give notice, or caution:
We fired a warning at the intruders.
3.
Meteorology. an announcement from the U.S. National Weather Service alerting the public that a storm or other weather-related hazard is imminent and that immediate steps should be taken to protect lives and property.
Compare advisory (def 5), storm warning (def 2), watch (def 20).
adjective
4.
serving to warn, advise, caution:
a warning bell.
verb (used with object)
1.
to give notice, advice, or intimation to (a person, group, etc.) of danger, impending evil, possible harm, or anything else unfavorable:
They warned him of a plot against him. She was warned that her life was in danger.
2.
to urge or advise to be careful; caution:
to warn a careless driver.
3.
to admonish or exhort, as to action or conduct:
She warned her employees to be on time.
4.
to notify, advise, or inform:
to warn a person of an intended visit.
5.
to give notice to (a person, group, etc.) to go, keep at a distance, etc. (often followed by away, off, etc.):
A sign warns trespassers off the grounds. A marker warned boats away from the dock.
6.
to give authoritative or formal notice to (someone); order; summon:
to warn a person to appear in court.
verb (used without object)
7.
to give a warning; caution:
to warn of further disasters.
noun
1.
a hint, intimation, threat, etc, of harm or danger
2.
advice to beware or desist
3.
an archaic word for notice (sense 6)
adjective
4.
(prenominal) intended or serving to warn: a warning look
5.
(of the coloration of certain distasteful or poisonous animals) having conspicuous markings, which predators recognize and learn to avoid; aposematic
verb
1.
to notify or make (someone) aware of danger, harm, etc
2.
(transitive; often takes a negative and an infinitive) to advise or admonish (someone) as to action, conduct, etc: I warn you not to do that again
3.
(takes a clause as object or an infinitive) to inform (someone) in advance: he warned them that he would arrive late
4.
(transitive; usually foll by away, off, etc) to give notice to go away, be off, etc: he warned the trespassers off his ground