(noun, verb)


1. fear resulting from the awareness of danger

Similar word(s): consternation, dismay

Definition categories: feeling, fear, fearfulness, fright

2. a device that signals the occurrence of some undesirable event

Definition categories: man–made, device

3. an automatic signal (usually a sound) warning of danger

Similar word(s): alarum, alert

Definition categories: communication, sign, signal, signaling

4. a clock that wakes a sleeper at some preset time

Definition categories: man–made, clock

Sentences with alarm as a noun:

- Arming to answer in a night alarm. --Shakespeare.

- Sound an alarm in my holy mountain. --Joel ii. 1.

- Alarm and resentment spread throughout the camp. --Thomas Babington Macaulay.

- The clockradio is a friendlier version of the cold alarm by the bedside

- You should set the alarm on your watch to go off at seven o'clock.


1. fill with apprehension or alarm; cause to be unpleasantly surprised

Similar word(s): appal, appall, dismay, horrify

Definition categories: emotion, affright, fright, frighten, scare

2. warn or arouse to a sense of danger or call to a state of preparedness

- The empty house alarmed him

Similar word(s): alert

Definition categories: communication, warn