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Fire alarm

noun

Noun

1
An electromechanical or electronic bell, klaxon, chime, horn, speaker, strobe light or other device which warns people in a building etc. of a possible fire or other condition requiring evacuation.
"Should the automatic fire alarm sound, the gas from the [carbon dioxide] bottles may be released in the engine compartment by operating a pull handle in the driver's cab."
2
an alarm that is tripped off by fire or smoke wordnet
3
The sound or other warning made by a fire alarm.
4
a shout or bell to warn that fire has broken out wordnet
5
An emergency response to a fire by the fire department with manpower and equipment.
"A four fire-alarm fire ripped through a row of 2.5 story frame dwellings during the early morning hours"

From fire + alarm.

Unscramble this word: firealarm