Définitions
1.AdjectiveAttentive; awake; on guard.
2.Adjectivebrisk; nimble; moving with celerity.
3.NounAn alarm.
4.NounA notification of higher importance than an advisory.
5.NounA state of readiness for potential combat."an airborne alert; ground alert"
6.NounSynonym of bell (“bell character”).
7.VerbTo give warning to.