<p><strong>Noun</strong></p><ul><li>the act or utterance of one who warns or the existence, appearance, sound, etc., of a thing that warns</li><li>something that serves to warn, give notice, or caution: We fired a warning at the intruders.</li><li>Synonyms: presage, augury, portent, sign, omen, advice, admonition, caution</li><li>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.</li></ul>