Alarm

Fear resulting from the awareness of danger

Warn or arouse to a sense of danger or call to a state of preparedness

Synonyms

Alert

Type of

Warn

Has types

Wake

Examples

The empty house alarmed him

A clock that wakes a sleeper at some preset time

Synonyms

Alarm clock

Type of

Clock

A device that signals the occurrence of some undesirable event

Fill with apprehension or alarm; cause to be unpleasantly surprised

An automatic signal (usually a sound) warning of danger