- An electromechanical or electronic bell, klaxon, chime, horn, speaker, strobe light or other device which warns people in a building of a possible fire or other condition requiring evacuation.
- The sound or other warning made by a fire alarm.
- (firefighting) 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
device which warns people of a possible fire
sound or other warning made by a fire alarm
response to a fire by the fire department
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