Definition of alarm

The noun alarm has 4 senses? (first 2 from tagged texts)

(fear resulting from the awareness of danger)

(a device that signals the occurrence of some undesirable event)

(an automatic signal (usually a sound) warning of danger)

(a clock that wakes a sleeper at some preset time)

The verb alarm has 2 senses? (first 2 from tagged texts)

(fill with apprehension or alarm; cause to be unpleasantly surprised; "I was horrified at the thought of being late for my interview"; "The news of the executions horrified us")

(warn or arouse to a sense of danger or call to a state of preparedness; "The empty house alarmed him"; "We alerted the new neighbors to the high rate of burglaries")