alert
noun(a-lert)
condition of heightened watchfulness or preparation for action
Synonyms: qui vive,
Examples:
Bombers were put on alert during the crisis.
alert
verb(a-lert)
warn or arouse to a sense of danger or call to a state of preparedness
Examples:
We alerted the new neighbors to the high rate of burglaries.
alert
adjective(a-lert)
engaged in or accustomed to close observation
Examples:
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.
alert
adjective(a-lert)
mentally perceptive and responsive
Examples:
An alert mind.
Alert to the problems.
alert
adjective(a-lert)
quick and energetic
alert
noun(a-lert)
a warning serves to make you more alert to danger
alert
noun(a-lert)
an automatic signal (usually a sound) warning of danger