alert

/ʌlˈɝt/

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Definitions

Adjective
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"
Adjective Satellite
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"
Adjective Satellite
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"
Noun
condition of heightened watchfulness or preparation for action; "bombers were put on alert during the crisis"
Noun
a warning serves to make you more alert to danger
Noun
an automatic signal (usually a sound) warning of danger
Verb
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"
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Antonyms

unalert
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