American Dictionary

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Definition alert in American English

alert verb

[transitive] verb
/əˈlɜrt/
1

to tell someone in authority about a danger or problem so that they can take action to deal with it

Example

Our neighbors heard the car being broken into and alerted the police.

Synonyms and related words
2

to tell someone about something that may affect them

Example

Something in his voice alerted Paige to the real danger.

Example

We will be alerting people not to swim in the water.

Synonyms and related words
Definition alert in American English