Formal:
* 再见 (zàijiàn): This is the most common and versatile way to say goodbye. It literally translates to "see you again."
* 再会 (zàihui): This is also formal, but slightly more polite than "再见." It means "until we meet again."
Informal:
* 拜拜 (bàibai): This is the most casual way to say goodbye, similar to "bye" in English.
* 88 (bā bā): This is a slang expression that originated from the Chinese word for "eight" (八), which sounds like "bye."
* 回头见 (huítóujiàn): This means "see you later" and is often used among friends.
Other options:
* 晚安 (wǎn'ān): This means "good night" and can be used as a way to say goodbye in the evening.
* 保重 (bǎozhòng): This means "take care" and is a polite way to say goodbye.
The best way to choose the right phrase is to consider the situation and your relationship with the person you are saying goodbye to.
Example:
* To a coworker: 再见 (zàijiàn)
* To a friend: 拜拜 (bàibai)
* To a family member: 晚安 (wǎn'ān)