HSK 5 HSK C4/W3
Correct

/ léi  /
Strokes

Collocation

1
打雷
2
雷声
3
雷阵雨
4
雷电

Definition

雷 is a Noun, which means[thunder/mine (weapon)/(Internet slang) terrifying/terrific].

Example

As a Noun.
1
léi
打雷
le
  
,
yào
xià
下雨
le
  

It's thundering and it's going to rain.

2
léi
打雷
ma
  
?

Are you afraid of thunder?

3
Tiān
天气
bào
预报
shuō
  
,
jīntiān
今天
yǒu
léizhèn
雷阵雨
  

The weather forecast says there will be thunderstorms today.