ˈfire aˌlarm BrE AmE noun [countable]
a piece of equipment that makes a loud noise to warn people of a fire in a building:
We were in the middle of an exam when the fire alarm went off.
Someone set off the fire alarm.
ˈfire aˌlarm BrE AmE noun [countable]
a piece of equipment that makes a loud noise to warn people of a fire in a building:
We were in the middle of an exam when the fire alarm went off.
Someone set off the fire alarm.
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012