n.

1. 警報；警報器[C]
   The doorkeeper gave the alarm as soon as he saw the smoke.

   守門人一看見冒煙就發出警報。

2. 鬧鐘[C]（= alarm clock）
3. 驚慌，恐懼，擔憂[U]
   "What's up?" he asked in alarm.

   "出什麼事了？"他驚恐地問道。

vt.

1. 向……報警，向……告急
2. 使驚慌不安，使恐懼
   "Don't be alarmed. I am no robber."

   "別慌，我不是強盜。"

3. 打擾

n.

1. anxious or frightened awareness of danger.
   ▸a warning of danger.
2. a warning sound or device.

v.

1. frighten or disturb.
2. (be alarmed) be fitted or protected with an alarm.