Correct

示警

/ shìjǐng / 
Strokes

Definition

to warn/a warning sign

Example

As a Verb

give a warning; warn

1
Míngqiāng
鸣枪
shìjǐng
示警

fire a warning shot

2
Míngluó
鸣锣
shìjǐng
示警

give a warning by beating a gong; beat an alarm on a gong