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alert

alert

137 3.5
A state of being ready and watchful for possible danger
  • noun
  • /əˈlɜrt/
translation icon : estado de alerta
  • His unit had been put on alert and was on its way to Vietnam.
  • high alert
  • a state of alert
  • put on alert

And so it's on alert because it's still there.

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Examples

  • All of us were on high alert, waiting for it to run into the last trap.

    Academic text (2003)
  • Pull them all back on high alert.

  • Now imagine being on alert in that way all the time.

  • Stay alert, and stay alive.

  • My senses, all on high alert, knew everything coming in was unique.

    Academic text (2000)
  • This is an unstable system, and this town should be on alert.

  • Believe me, everyone's on full alert, a bit late maybe, but they are now.

    Fiction book (1990)
  • Tonight, of all nights, she had to be on the alert for those mental slips.

    Fiction book (1992)
  • Every cop in Dempsy and Gannon is on alert.

  • The emergency services issued an alert to residents about the impending storm.

Synonyms

vigilance
vsalert
33 5.2

A state of watching and staying ready for danger

focuses on short term heightened readiness rather than long ongoing watch
high alert
vsalert
25 3.6

A time when people are extra ready and careful because of danger

is broader readiness, not limited to threat responses
red alert
vsalert
  • Formal
24 4.7

A strong warning that serious danger is coming and people must act now

is a general heightened readiness, not the maximum emergency level
alertness
vsalert
14 2.9

A state of being watchful and ready to notice and act on danger or problems

refers to an active state of readiness rather than just the quality
watchfulness
vsalert
2 4.2

Careful attention to danger or problems to keep people safe

is a temporary heightened readiness rather than continuous attention
hypervigilance
vsalert
  • Specialized
1 9.3

To be very alert and watchful because you feel worried or unsafe

is controlled readiness for action, not anxiety driven or extreme
qui vive
vsalert
  • Archaic
9.9

A state of being ready and watching for danger

is general heightened readiness, not especially formal

Antonyms

16 2.8

Lack of attention that causes mistakes or accidents

8 4.6

Not noticing things around you

Compounds

25 3.6

A time when people are extra ready and careful because of danger

red alert
  • Formal
24 4.7

A strong warning that serious danger is coming and people must act now

spoiler alert
  • Texting
7 3.9

A warning that someone will tell important story details

1 3.3

A national system that lets officials send emergency warnings on radio and television

5.5

A warning telling people to go to shelters because an enemy air attack may happen

air alert
  • Jargon
6.8

A military state where fighter jets stay ready to take off quickly to respond to a threat

4.4

An official warning about a disease spreading to many countries

A dog trained to notice signs of a seizure and warn or help the person

strip alert
  • Jargon
7.9

A state when planes and their crews are ready to take off immediately for defense

How Alert

hypervigilance
  • Specialized
1 9.3
vigilance
33 5.2
alert
137 3.5
awareness
336 3.2

Surface Forms

alert singular
alerts plural

Etymology

Alert comes from the Italian phrase all'erta, which means 'on the watch' or ready to act. That's why being on alert means you are watching and prepared for possible danger.