mass noun
1- an anxious awareness of danger恐慌, 警戒：
the boat tilted and the boatmen cried out in alarm
小舟倾斜, 船员们惊恐地叫了起来
he views the right-wing upsurge in Europe with alarm.
他恐慌地关注着欧洲右翼势力的高涨。
1.1
- in sing. a warning of danger警报：
I hammered on several doors to raise the alarm
我敲了几家门以示警告
Oliver smelled smoke and gave the alarm.
奥利弗闻到烟味发出了警报。
1.2
- count noun a warning sound or device警报声; 警报器：
a burglar alarm.
防盗自动警铃。
1.3
- count noun an alarm clock闹钟。
1
- with obj. cause (someone) to feel frightened, disturbed, or in danger使（某人）感到惊恐（或烦扰、危险）：
the government was alarmed by an outbreak of unrest
政府对突发的骚乱感到惊恐
as adj. alarming our countryside is disappearing at an alarming rate.我们的乡村正以令人惊恐的速度消失。
2
- (be alarmed) be fitted or protected with an alarm设有警报器的：
this door is locked and alarmed between 11 p. m. and 6 a. m.
这扇门上了锁, 而且晚上11点到早上6点都开着警报器。
派生词
alarmingly
adverb词源
late Middle English （as an exclamation meaning 'to arms!'）： from Old French alarme, from Italian allarme, from all' arme！ 'to arms!'.