fire alarm

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fire alarm

The fire alarm on the hallway wall is ringing loudly while a small light flashes.

Definition
  1. Noun:
    • A device that warns of fire: A fire alarm is a system or device designed to detect and alert people to the presence of fire, smoke, or high heat, typically through loud sounds and flashing lights.
    • The signal or warning itself: A fire alarm is also the audible or visual signal (like a siren, bell, or shout) that indicates a fire has broken out and prompts evacuation.
Usage Examples
  • Noun:
    • The fire alarm in our building is tested every month. (The warning device in our building undergoes regular checks.)
    • When someone shouted "Fire!", it acted as a fire alarm, and everyone ran for the exits. (The shout served as the warning signal for the fire.)
Advanced Usage
  • "to set off the fire alarm": to activate the alarm, either accidentally or intentionally.
    • Pulling the emergency lever will set off the fire alarm.
  • "fire alarm system": the complete network of devices (detectors, alarms, control panels) designed to warn of fire.
    • The new office building has a state-of-the-art fire alarm system.
Variants and Related Words
  • Fire detector / Smoke detector (n): A specific component of a fire alarm system that senses smoke or heat.
  • Alarm (n): A general warning of danger.
  • Evacuation signal (n): A signal, which may be a fire alarm, instructing people to leave a building.
Synonyms
  • Fire signal: A warning sign indicating fire.
  • Alert (for fire): A notification of fire danger.
Related Phrases
  • False alarm: A situation where the fire alarm is activated without the presence of a real fire.
    • The burnt toast caused a false alarm in the dormitory.
  • Fire drill: A practice exercise for evacuating a building, often involving the fire alarm.
    • During the fire drill, the fire alarm will sound for two minutes.
Related Idioms
  • A wake-up call: (Figuratively) An event that warns you of a dangerous situation and prompts you to take action. While not specific to fire, it shares the concept of a warning.
    • The minor electrical fault was a wake-up call to update the old fire alarm.
fire alarm

The fire alarm on the hallway wall is ringing loudly while a small light flashes.

Noun
  1. an alarm that is tripped off by fire or smoke
  2. a shout or bell to warn that fire has broken out

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