Alert

Parts Of Speech: Adjective

Definition:

When you are alert, you are wide awake and able to act quickly.

Synonyms: Similar words

alarm

forewarn

inform

Antonyms: Opposite words

Sentences:

Soldiers

The soldiers on the border were on the alert.

Man drinking coffee

A cup of coffee helps you to stay alert.

Man working, heavy vehicles

The bomb alert was raised in the morning.

Men

Bailey is alert to every possible danger.