Definitions for alert

Definitions for (noun) alert

Main entry: alarm, alarum, alert, warning signal

Definition: an automatic signal (usually a sound) warning of danger

Main entry: alert, alerting

Definition: a warning serves to make you more alert to danger

Main entry: qui vive, alert

Definition: condition of heightened watchfulness or preparation for action

Usage: bombers were put on alert during the crisis

Definitions for (verb) alert

Main entry: alarm, alert

Definition: warn or arouse to a sense of danger or call to a state of preparedness

Usage: The empty house alarmed him; We alerted the new neighbors to the high rate of burglaries

Definitions for (adj) alert

Main entry: alert, watchful

Definition: engaged in or accustomed to close observation

Usage: caught by a couple of alert cops; alert enough to spot the opportunity when it came; constantly alert and vigilant, like a sentinel on duty

Main entry: awake, alert, alive

Definition: mentally perceptive and responsive

Usage: an alert mind; alert to the problems; alive to what is going on; awake to the dangers of her situation; was now awake to the reality of his predicament

Main entry: rattling, alert, spanking, snappy, zippy, brisk, merry, lively

Definition: quick and energetic

Usage: a brisk walk in the park; a lively gait; a merry chase; traveling at a rattling rate; a snappy pace; a spanking breeze

Visual thesaurus for alert