HSK 6 HSK V5
Correct

报警

/ bàojǐng / 
Strokes

Definition

to sound an alarm/to report sth to the police

Example

As a Verb
report to the police; call/inform the police
1
Chē
车
diū
丢
le
了
  
,
nǐ
你
bàojǐng
报警
le
了
ma
吗
  
?

Have you reported the car theft?

2
Bào
报
huǒjǐng
火警

report a fire

As a Verb
give an alarm; send in an alarm
3
Bàojǐng
报警
zhuāngzhì
装置

alarm device

4
Bàojǐng
报警
zhǐshìqì
指示器

alarm indicator

5
Míngzhōng
鸣钟
bàojǐng
报警

sound the alarm bell