Alert(a.) Watchful; vigilant; active in vigilance.
Alert(a.) Brisk; nimble; moving with celerity.
Alert(n.) An alarm from a real or threatened attack; a sudden attack; also, a bugle sound to give warning.
Alertly(adv.) In an alert manner; nimbly.
Alertness(n.) The quality of being alert or on the alert; briskness; nimbleness; activity.

Words within alerters