(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)
- To call to arms for defense
- To give (someone) notice of approaching danger
- To rouse to vigilance and action; to put on the alert.
- To surprise with apprehension of danger; to fill with anxiety in regard to threatening evil; to excite with sudden fear.
- To keep in excitement; to disturb.
From Middle English alarme, alarom, from Middle French alarme, itself from Old Italian all'arme! (“to arms!, to the weapons!”), ultimately from Latin arma (“arms, weapons”).