Definitions For Alarm

noun

• A device that signals the occurrence of some undesirable event
• A clock that wakes a sleeper at some preset time
• An automatic signal (usually a sound) warning of danger
• Fear resulting from the awareness of danger
• A device that makes a loud sound as a warning or signal
• A feeling of fear caused by a sudden sense of danger
• A warning of danger

verb

• Warn or arouse to a sense of danger or call to a state of preparedness
• Fill with apprehension or alarm; cause to be unpleasantly surprised
• To cause (someone) to feel a sense of danger : to worry or frighten (someone)