A smoke detector is a type of alarm.
- Alarm is defined as a device or call announcing a warning or danger.
A smoker detector is an example of an alarm.
- The definition of alarm is to warn of danger or to make someone afraid or distressed.
- An example of alarm is Paul Revere riding through the towns to warn the people that the British were near.
- An example of alarm is to sneak up behind a person and shout to scare him or her.
- Archaic a sudden call to arms
- a signal, sound, cry, etc. that is a warning of danger
- a mechanism designed to warn of danger or trespassing: a burglar alarm
- the bell, buzzer, etc. of an alarm clock
- fear caused by a sudden awareness of danger
Origin of alarmMiddle English alarme ; from Old French ; from Italian all'arme, to arms
- to warn of approaching danger
- to make suddenly afraid or anxious; frighten
- Sudden fear or concern caused by the realization of danger or an impending setback. See Synonyms at fear.
- A warning of existing or approaching danger: The committee's report issued an alarm about the dangerous condition of the town's buildings.
- A device that is used to warn of danger by means of a sound or signal: a fire alarm.
- The sounding mechanism of an alarm clock: The alarm went off at 6:30.
- A call to arms.
transitive verba·larmed, a·larm·ing, a·larms
- To fill with alarm or anxious concern. See Synonyms at frighten.
- To give warning to: “The soldiers &ellipsis; killed every dog within three miles to prevent a bark that would alarm the enemy” (William Least Heat-Moon).
- To equip with or protect by an alarm: The dormitory doors are alarmed from 7:00 PM to 7:00 AM.
Origin of alarmMiddle English, from Old French alarme, from Old Italian allarme, from all'arme, to arms : alla, to the (from Latin ad illa : ad, to; see ad– + illa, neuter pl. of ille, that, the; see al-1 in Indo-European roots) + arme, arms (from Latin arma; see ar- in Indo-European roots).
(countable and uncountable, plural alarms)
- A summons to arms, as on the approach of an enemy.
- Arming to answer in a night alarm. --Shakespeare.
- Any sound or information intended to give notice of approaching danger; a warning sound to arouse attention; a warning of danger.
- Sound an alarm in my holy mountain. --Joel ii. 1.
- A sudden attack; disturbance.
- Sudden surprise with fear or terror excited by apprehension of danger; in the military use, commonly, sudden apprehension of being attacked by surprise.
- Alarm and resentment spread throughout the camp. --Thomas Babington Macaulay.
- A mechanical device for awaking people, or rousing their attention.
- The clockradio is a friendlier version of the cold alarm by the bedside
- An instance of an alarum ringing or clanging, to give a noise signal at a certain time.
- You should set the alarm on your watch to go off at seven o'clock.
(third-person singular simple present alarms, present participle alarming, simple past and past participle alarmed)