Meaning of ALERT in English

ALERT

transcription, транскрипция: [ əlɜ:(r)t ]

( alerts, alerting, alerted)

Frequency: The word is one of the 3000 most common words in English.

1.

If you are alert , you are paying full attention to things around you and are able to deal with anything that might happen.

We all have to stay alert...

He had been spotted by an alert neighbour.

= attentive

ADJ

• alert‧ness

The drug improved mental alertness.

N-UNCOUNT

2.

If you are alert to something, you are fully aware of it.

The bank is alert to the danger.

ADJ : v-link ADJ to n

3.

An alert is a situation in which people prepare themselves for something dangerous that might happen soon.

Due to a security alert, this train will not be stopping at Oxford Circus.

N-COUNT

4.

If you alert someone to a situation, especially a dangerous or unpleasant situation, you tell them about it.

He wanted to alert people to the activities of the group...

I was hoping he’d alert the police.

VERB : V n to n , V n

5.

see also red alert

6.

If soldiers or police are on alert , they are ready to deal with anything that may happen.

Soldiers and police have been put on alert.

PHRASE : PHR after v , v-link PHR

7.

If you are on the alert for something, you are ready to deal with it if it happens.

They want to be on the alert for similar buying opportunities.

PHRASE : PHR after v , v-link PHR

Collins COBUILD Advanced Learner's English Dictionary.      Английский словарь Коллинз COBUILD для изучающих язык на продвинутом уровне.