alarm : Idioms & Phrases


Alarm bell

  • noun the sound of an alarm (usually a bell)
    tocsin.
WordNet
  • a bell that gives notice on danger.
Webster 1913

alarm clock

  • noun a clock that wakes a sleeper at some preset time
    alarm.
WordNet

Alarm clock or watch

  • a clock or watch which can be so set as to ring or strike loudly at a prearranged hour, to wake from sleep, or excite attention.
Webster 1913

Alarm gauge

  • a contrivance attached to a steam boiler for showing when the pressure of steam is too high, or the water in the boiler too low.
Webster 1913

Alarm post

  • a place to which troops are to repair in case of an alarm.
Webster 1913

alarm system

  • noun a device that signals the occurrence of some undesirable event
    alarm; warning device.
WordNet

Burglar alarm

  • noun a loud warning signal produced by a burglar alarm
    • they could hear the burglar alarm a mile away
  • noun a warning device that is tripped off by the occurrence of a burglary
WordNet
  • a device for giving alarm if a door or window is opened from without.
Webster 1913

Earthquake alarm

  • a bell signal constructed to operate on the theory that a few seconds before the occurrence of an earthquake the magnet temporarily loses its power.
Webster 1913

false alarm

  • noun a warning that is given about something that fails to occur
WordNet

Fire alarm

  • noun a shout or bell to warn that fire has broken out
  • noun an alarm that is tripped off by fire or smoke
    fire alarm.
WordNet
  • (a) A signal given on the breaking out of a fire. (b) An apparatus for giving such an alarm.
Webster 1913

Fog alarm, Fog bell, Fog horn, etc.

  • a bell, horn, whistle or other contrivance that sounds an alarm, often automatically, near places of danger where visible signals would be hidden in thick weather.
Webster 1913

Low water alarm ∨ indicator

  • (Steam Boiler), a contrivance of various forms attached to a boiler for giving warning when the water is low.
Webster 1913

smoke alarm

  • noun an alarm that is tripped off by fire or smoke
    fire alarm.
WordNet

Till alarm

  • a device for sounding an alarm when a money drawer is opened or tampered with.
Webster 1913