How do you say little sister in Chinese?

There are a few ways to say "little sister" in Chinese, depending on the context and formality:

Formal:

* 妹妹 (mèimei): This is the most common and neutral way to say "little sister". It's suitable for most situations, even formal ones.

Informal:

* 小妹 (xiǎomèi): This is a more informal way to say "little sister". It's often used by older siblings or close friends.

* 妹 (mèi): This is the most informal way to say "little sister" and is usually used between siblings who are very close.

Note:

* The choice of which term to use depends on your relationship with the person you're talking about and the context of the conversation.

* In some cases, you might also use "小妹" as a respectful way to address a young woman.