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alert
[uh-lurt]
adjective
fully aware and attentive; wide-awake; keen.
She had an alert mind.
Synonyms: , ,Antonyms:swift; agile; nimble.
Synonyms: , , , , ,
noun
an attitude of vigilance, readiness, or caution, as before an expected attack.
a warning or alarm of an impending military attack, a storm, etc..
We'd just boarded the bus when the alert sounded.
the period during which such a warning or alarm is in effect.
verb (used with object)
to warn (troops, ships, etc.) to prepare for action.
to warn of an impending raid, attack, storm, etc..
The radio alerted coastal residents to prepare for the hurricane.
to advise or warn; cause to be on guard.
to alert gardeners to the dangers of some pesticides.
alert
/ əˈɜː /
adjective
vigilantly attentive
alert to the problems
brisk, nimble, or lively
noun
an alarm or warning, esp a siren warning of an air raid
the period during which such a warning remains in effect
on guard against danger, attack, etc
watchful; ready
on the alert for any errors
verb
to warn or signal (troops, police, etc) to prepare for action
to warn of danger, an attack, etc
Other 51Թ Forms
- alertly adverb
- alertness noun
- hyperalert adjective
- unalerted adjective
- ˈٱ adverb
- ˈٲԱ noun
51Թ History and Origins
Origin of alert1
51Թ History and Origins
Origin of alert1
Idioms and Phrases
on the alert, on guard against danger; in readiness; vigilant.
The state police are on the alert for an escaped convict believed to be in the area.
Synonym Study
Example Sentences
The weather alert service warns the public in England when high or low temperatures could damage their health.
Mr Edy added that they had been phoning the British Consulate every day who had advised them to register for email alerts.
Iran launched two waves of missiles in response to the Israeli attacks, setting off air raid alerts in parts of central and northern Israel.
He said it’s moments like those that cause him to be on high alert whenever he has to go to the store.
Yellow heat health alerts have been issued for most of England with temperatures set to soar across the country later this week.
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When To Use
An alert is a warning or alarm, especially an alarm about dangerous weather or a military attack, as in The National Weather Service has alerts for tornadoes, hurricanes, Nor’easters, and other severe weather occurrences.Alert is also an attitude of readiness or caution, as in Tina was on alert for news of her son’s acceptance into college.Alert describes being fully attentive or wide awake, as in Sabine needs to be awake for several hours before she is alert and ready to work. You can be alert to the people and objects surrounding you. When you are alert, you’re ready to act or react instead of being surprised. But you can also be alert to concepts, ideas, and trends, ready to react to a change in others’ thoughts or to a change in the market.To alert means to advise or to warn, as with an alert. For example, your teacher might alert you that your big project is due soon, while a police department might alert the public about a dangerous person on the streets.Example: Alert the security team of the incident and then head home.
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
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