alert

/ɐlˈɜːt/

/əˈɫɝt/

[adjective] [verb] [noun]

alert

[ADJECTIVE]

able to notice things or think quickly

synonyms : alive(p)

awake(p)

engaged in or accustomed to close observation

synonyms : watchful

antonyms : unalert

quick and energetic

synonyms : brisk

to alert

MAIN VERB

to warn someone of a possible danger

synonyms : alarm

Alert

[NOUN]

a warning about a danger, problem, or threat

synonyms : alerting

an automatic signal (usually a sound) warning of danger

synonyms : alarm

alarum

warning signal

a situation where people are ready to confront a threat

synonyms : qui vive

Examples

1. The child's cry of fear alerted the adults to the presence of a spider.

2. I'll be more alert when I get this medication out of my system.

3. The attack was unsuccessful and served only to alert the enemy.

4. After a period of fighting and dying, macrophages alert the brain of the immune system: the dendritic cells.

Nearby words