Formal:
* 再见 (zàijiàn): This is the most common and versatile way to say goodbye. It literally means "see you again" and can be used in most situations.
* 告辞 (gào cí): This is a more formal way to say goodbye, often used in business settings or when leaving a formal gathering. It literally means "to take leave."
Informal:
* 拜拜 (bài bài): This is a casual and friendly way to say goodbye, similar to "bye" in English.
* 88 (bā bā): This is a slang term for goodbye, derived from the sound of "bye bye" in Mandarin. It's very informal and should only be used with close friends.
* 下次见 (xià cì jiàn): This means "see you next time" and is a friendly and casual way to say goodbye.
Other options:
* 晚安 (wǎn ān): This means "good night" and is used when saying goodbye in the evening.
* 保重 (bǎo zhòng): This means "take care" and is a polite way to say goodbye, especially when you're concerned about the other person's health or well-being.
The best way to choose the right goodbye phrase is to consider the context of the situation and the relationship you have with the person you're saying goodbye to.