AL'ARM, n.

1. Any sound, outcry or information intended to give notice of approaching danger as, to sound an alarm.
2. A summon to arms.
3. Sudden surprise with fear or terror as, the fire or the enemy excited an alarm.
4. Terror a sensation excited by an apprehension of danger, from whatever cause as, we felt an alarm at the cry of fire.
5. In fencing, an appeal or challenge.