Shut up!

1 闭嘴！bì zuǐ！

A very rude way to tell someone to stop talking, usually shows that you’re offended or angry.

Literal translation:

闭 bì：to close

嘴 zuǐ：mouth

Example:

A: 你有点儿胖。

B:闭嘴！

A:nǐ yǒu diǎn'r pàng 。

B:bì zuǐ!

A: You're fat.

B: Shut up!

2 别说话！bié shuō huà！

A kind or aggressive way to tell someone not to speak, depends on your tone.

Literal translation:

别 bié：don’t

说话 shuō huà：speak or talk

Example:

A: 我们出去玩儿吧。

B: 别说话,我要睡觉。

A: wǒ men chū qù wán'r ba 。

B: bié shuō huà ,wǒ yào shuì jiào 。

A: Let's hang out.

B: Stop talking, I'm gonna go to bed

3 安静！ān jìng!

A very common word to tell someone to be quiet 

Literal translation:

Be quiet 

Example:

A:你想看电影吗？

B:安静,我在看书。

A:nǐ xiǎng kàn diàn yǐng ma ？

B:ān jìng ,wǒ zài kàn shū 。

A: Do you wanna watch movies? B: Quiet, I am reading.