Alert - Definition

adj 1: engaged in or accustomed to close observation; "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" [syn: alert,
watchful] [ant: unalert, unvigilant, unwatchful]
2: quick and energetic; "a brisk walk in the park"; "a lively
gait"; "a merry chase"; "traveling at a rattling rate"; "a
snappy pace"; "a spanking breeze" [syn: alert, brisk,
lively, merry, rattling, snappy, spanking, zippy]
3: mentally perceptive and responsive;"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" [syn: alert, alive(p), awake(p)]
n 1: condition of heightened watchfulness or preparation for
action; "bombers were put on alert during the crisis" [syn:
alert, qui vive]
2: a warning serves to make you more alert to danger [syn:
alert, alerting]
3: an automatic signal (usually a sound) warning of danger [syn:
alarm, alert, warning signal, alarum]
v 1: warn or arouse to a sense of danger or call to a state of
preparedness; "The empty house alarmed him"; "We alerted
the new neighbors to the high rate of burglaries" [syn:
alarm, alert]