warningn.1. 警告;告诫;警报[U][C][(+of)][+to-v]The son was so captivated with the woman that he didn't heed his parents' warnings.儿子为这个女人神魂颠倒,全然不顾他父母的告诫。The red light is a warning sign for stop.红灯是警告停止行进的信号。2. 可引以为戒的事(或人)[C]Let this be a warning to you.希望这件事能成为你的鉴戒。3. 徵候;前兆[C]The wall caved in without the slightest warning.事先大家毫无察觉的情况下墙塌了。4. 【古】(解雇;辞职等的)预先通知[U]a.1. 警告的;告诫的;引以为戒的The policeman fired a warning shot.那警察鸣枪警告。