firealarm
nounUK /ˈfaɪər əˌlɑːm/
US /ˈfaɪr əˌlɑːrm/
A loud bell or sound that tells people a fire is near.
When the fire alarm rang, everyone walked outside quickly.
SYNONYMS
OTHER MEANINGS
2. A device that makes a loud noise to warn about smoke or fire.
The fire alarm on the ceiling started beeping.
3. A signal or warning that a fire has started.
The school practiced what to do when the fire alarm sounds.
4. A system of bells or sirens used to warn people in a building.
The building's fire alarm was tested every month.