English dictionary



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English adjective: alert

1. alert engaged in or accustomed to close observation


SamplesCaught by a couple of alert cops.
Alert enough to spot the opportunity when it came.
Constantly alert and vigilant, like a sentinel on duty.


Synonymswatchful


Similarargus-eyed, fly, heads-up, lidless, open-eyed, sleepless, vigilant, wakeful, wide-awake


See alsoawake, lively, wary


Antonymsunalert, unvigilant, unwatchful

2. alert quick and energetic


SamplesA brisk walk in the park.
A lively gait.
A merry chase.
Traveling at a rattling rate.
A snappy pace.
A spanking breeze.


Synonymsbrisk, lively, merry, rattling, snappy, spanking, zippy


Similarenergetic


Antonymslethargic, unenrgetic

3. alert mentally perceptive and responsive


SamplesAn 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.


Synonymsalive, awake


Similaraware, cognisant, cognizant


Antonymsincognizant, unaware


English noun: alert

1. alert (state) condition of heightened watchfulness or preparation for action


SamplesBombers were put on alert during the crisis.


Synonymsqui vive


Broader (hypernym)preparation, preparedness, readiness


Narrower (hyponym)air alert, red alert, strip alert

2. alert (communication) a warning serves to make you more alert to danger


Synonymsalerting


Broader (hypernym)warning


Instance hyponymEAS, Emergency Alert System

3. alert (communication) an automatic signal (usually a sound) warning of danger


Synonymsalarm, alarum, warning signal


Broader (hypernym)sign, signal, signaling


Narrower (hyponym)air alert, alarm bell, burglar alarm, fire alarm, foghorn, fogsignal, horn, red flag, siren, tocsin, torpedo


English verb: alert

1. alert (communication) warn or arouse to a sense of danger or call to a state of preparedness


SamplesThe empty house alarmed him.
We alerted the new neighbors to the high rate of burglaries.


Synonymsalarm


Pattern of useSomebody ----s somebody.
Something ----s somebody


Broader (hypernym)warn


Narrower (hyponym)wake









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