alert

noun
UK: /əˈlɜːt/
US: /əˈlɝːt/

  1. A warning of danger or a problem.

    1. The fire alarm is an alert for everyone in the building. [ ] [ ]
    2. An alert was issued about the severe weather conditions expected later tonight. [ ] [ ]

  2. A state of being watchful and prepared for possible danger.

    1. Security guards must always be on the alert for suspicious activity. [ ] [ ]
    2. Staying alert and observant can help you avoid potential accidents. [ ] [ ]

Synonyms

warn alarm vigilant aware
alert verb

  1. To warn someone about a danger or problem.

    1. I tried to alert my neighbor about the gas leak. [ ] [ ]
    2. The loud noise alerted the dog, who started barking immediately. [ ] [ ]

  2. To make someone aware of something important.

    1. This message will alert users to the upcoming system maintenance. [ ] [ ]
    2. The company's new policy will alert employees to changes in vacation time. [ ] [ ]
alert adjective

  1. Quick to notice and react to possible danger or problems.

    1. A good guard dog is very alert. [ ] [ ]
    2. The government remains alert to any potential threats to national security. [ ] [ ]

  2. Mentally quick and active.

    1. Even at 90, she is still very alert. [ ] [ ]
    2. Staying mentally alert helps improve cognitive function and memory. [ ] [ ]

Frequently Asked Questions

The word "alert" in English means: A warning of danger or a problem., A state of being watchful and prepared for possible danger..

The phonetic transcription of "alert" is /əˈlɜːt/ in British English and /əˈlɝːt/ in American English. Click the 🔊 button to hear both pronunciations.

Synonyms for "alert": warn, alarm, vigilant, aware.

Example usage of "alert": "The fire alarm is an alert for everyone in the building.". More examples on the page.