1580s, from alarm (n.). Related: Alarmed; alarming.

early 14c., from Old French alarme (14c.), from Italian all'arme "to arms!" (literally "to the arms"). An interjection that came to be used as the word for the call or warning [..]

Alarma particular quivering sound of the silver trumpets to give warning to the Hebrews on their journey through the wilderness ( Numbers 10:5 Numbers 10:6 ), a call to arms, or a war-note ( Jeremiah [..]

Message notifying an operator or administrator of a network problem. See also event and trap.

dismay: fill with apprehension or alarm; cause to be unpleasantly surprised; "I was horrified at the thought of being late for my interview"; "The news of the ex [..]

sudden surprise or fear. The same word also means a warning of danger, often a bell

An alerting indication to a condition that may have immediate or potential negative impact on the state of the monitored network element (NE). [T1.226-1992]

Emergency dive order on a U-boat.

a particular quivering sound of the silver trumpets to give warning to the Hebrews on their journey through the wilderness (Num. 10:5, 6), a call to arms, or a war-note (Jer. 4:19; 49:2; Zeph. 1:16).

From the Italian, "All'arme" -- "To arms!"

 - A signal for attracting attention to some abnormal event.

An outcry made to give notice of danger. (Italian, all’ arme, “to arms;” French, alarme.)

A watch complication that sounds an alarm at a preset time or at regular intervals.

an unsolicited message from a device, typically indicating a problem with the system that requires attention. Alarm or Indicator Fuse

Loud warning signal used to alert home owners, neighbors, and authorities to a problem in the home. An alarm is typically connected to a control unit and will indicate when a door or window opens or is broken, or when motion is detected. Also known as a siren.

An item that watches a single metric over a specified time period, and triggers an Amazon SNS topic or an Auto Scaling policy if the value of the metric crosses a threshold value o [..]

A security system that makes a loud noise if anyone tries to enter, damage or steal the vehicle.

The alarm is a system that detects an event and sends a trigger signal to initiate a particular action. In most cases, the alarm detects motion and the trigger initiates DVR recording of the image fro [..]

In video security: An alarm occurs when a camera detects motion or there is a change in a physical alarm input, such as a door opening or closing.

Components of medical instrumentation used for physiological evaluation of Patients, that signal when a threshold value is reached.

As used here, a device which gives a visual or auditory signal (e.g., a light or buzzer) when the suction or air flow in an Active Soil Depressurization system moves outside the acceptable operating range for that system. An alarm may or may not also include a gauge to provide a reading of the actual suction or airflow in the system. BACKDRAFTING

(1) system for detecting and reporting unusual conditions, such as smoke, fire, flood, loss of air, HAZMAT release, etc; (2) centralized dispatch center for interpreting alarms and dispatching resources. See fire alarm control panel

A device that makes an alerting sound at a preset time. Alarm watches can be either quartz or mechanical.

1. A summons to arms, as on the approach of an enemy. "Arming to answer in a night alarm." (Shak) 2. Any sound or information intended to give notice of approaching danger; a warming sound to arouse attention; a warning of danger. "Sound an alarm in my holy mountain." (Joel II. 1) 3. A sudden attack; disturbance; broil. "Th [..]

 something to help you wake up at an appropriate time, this could be a sound notification on your smartphone or a telephone call from staff if you are staying in a hotel.

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 [..]

alert, alarm