ETYM French alarme, Italian all' arme to arms ! from Latin arma, pl., arms. Related to Arms, Alarum.
1. A device that signals the occurrence of some undesirable event; SYN. warning device, alarm system.
2. An automatic signal (usually a sound) warning of danger; SYN. alert, warning signal, alarum.
3. Fear resulting from the awareness of danger; SYN. dismay, consternation.

1. A loud warning signal produced by a burglar alarm.
2. A warning device that is tripped off by the occurrence of a burglary.

A visual or auditory signal from a computer alerting the user to an error or a hazardous situation.

Frightening because of an awareness of danger

1. To arouse to a sense of danger; SYN. alert.
2. Fill with apprehension or alarm; cause to be unpleasantly surprised

A device that signals the occurrence of some undesirable event

1. A loud warning signal produced by a burglar alarm.
2. A warning device that is tripped off by the occurrence of a burglary.

1. A loud warning signal produced by a burglar alarm.
2. A warning device that is tripped off by the occurrence of a burglary.