n.
1. 警报;警报器[C]
The doorkeeper gave the alarm as soon as he saw the smoke.
守门人一看见冒烟就发出警报。
2. 闹钟[C] (=alarm clock)
3. 惊慌,恐惧,担忧[U]
What\'s up?\" he asked in alarm.
出什么事了?\"他惊恐地问道。
vt.
1. 向...报警,向...告急
2. 使惊慌不安,使恐惧
Don\'t be alarmed. I am no robber.
别慌,我不是强盗。
3. 打扰