Meaning of mì:
密
surname Mi; name of an ancient state
Zuótiān wǒ yùdào le yī wèi xìng mì de xiānsheng.
昨天我遇到了一位姓密的先生。
Yesterday, I met a gentleman with the surname Mi.
Wǒmen zài lìshǐ kè shàng xuéxíle guānyú gǔdài guójiā mì de gùshì.
我们在历史课上学习了关于古代国家密的故事。
We learned about the story of the ancient state of Mi in history class.
dense; close; thick; intimate; close; (bound form) secret; confidential
Sēnlín lǐ de shùmù hěn mì.
森林里的树木很密。
The trees in the forest are very dense.
Wǒ hé tā de guānxì fēicháng mìqiè.
我和她的关系非常密切。
I have a very close relationship with her.
Zhè fèn wénjiàn shì jīmì de, qǐng bǎoguǎn hǎo.
这份文件是机密的,请保管好。
This document is confidential, please keep it safe.
(Internet slang) to send a private message to (sb); to DM
Wǒ xiǎng yào gěi nǐ mì yī tiáo xiāoxi.
我想要给你密一条消息。
I want to send you a private message.