Common Meanings
1
léi雷
The loud sound produced by lightning and atmospheric discharge during a rainstorm.
外面电闪雷鸣，一场大雨即将到来。
Outside, lightning flashes and thunder rumbles; a heavy rain is about to come.
Refers to explosive military devices such as mines, torpedoes, or the act of deploying/removing them.
扫雷队员正在排除一枚地雷。
Mine clearance personnel are in the process of disarming a landmine.
Refers to 'Leichi' (an ancient river in Anhui, China). Used in the idiom 'bù gǎn yuè Léi Chí yī bù' (不敢越雷池一步), which means not daring to overstep a certain boundary or limit.
在制定项目预算时，我们必须严守规定，不敢越雷池一步
When formulating the project budget, we must strictly abide by the regulations, not daring to overstep the mark.
shocking; stunning; unexpectedly absurd or outrageous (colloquial)
这个新节目的剧情太雷了，我完全没想到会这样。
The plot of this new show is so unexpected and shocking, I totally didn't see it coming.