alarm

noun

• an anxious awareness of danger:the boat tilted and the boatmen cried out in alarm he views the right-wing upsurge in Europe with alarm
• [in singular] a warning of danger:I hammered on several doors to raise the alarm Oliver smelled smoke and gave the alarm
• [count noun] a warning sound or device:a burglar alarm
• [count noun] an alarm clock: I set my alarm for 6:30

verb

• 1 [with object] make (someone) feel frightened, disturbed, or in danger:the government was alarmed by an outbreak of unrest

• 2 (be alarmed) be fitted or protected with an alarm:this door is locked and alarmed between 11 p.m. and 6 a.m.