The meaning of ALERT is watchful and prompt to meet danger or emergency. How to use alert in a sentence. Synonym Discussion of Alert.

ALERT definition: fully aware and attentive; wide-awake; keen. See examples of alert used in a sentence.

Monitor the web for interesting new content. How often. As-it-happens. At most once a day. At most once a week. Sources. Automatic. News. Blogs. Web. Video. Books. Discussions. Finance. …

ALERT definition: 1. quick to see, understand, and act in a particular situation: 2. a warning to people to be…. Learn more.

If you are alert, you are paying full attention to things around you and are able to deal with anything that might happen. We all have to stay alert. He had been spotted by an alert neighbour.

Define alert. alert synonyms, alert pronunciation, alert translation, English dictionary definition of alert. adj. 1. Vigilantly attentive; watchful: alert to danger; an alert bank guard.

Alert, vigilant, watchful imply a wide-awake attitude, as of someone keenly aware of his or her surroundings.

A condition or period of heightened watchfulness or preparation for action. Nuclear-armed bombers were put on alert during the crisis.

Jan 20, 2026 · Adjective alert (comparative more alert, superlative most alert) Attentive; awake; on guard. Synonym: wakeful (obsolete) brisk; nimble; moving with celerity.

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