General term for sisters:
* 姐妹 (jiě mèi): This is the most common and general term for sisters. It literally means "elder sister" and "younger sister."
Specific terms:
* 姐姐 (jiě jie): Older sister
* 妹妹 (mèi mei): Younger sister
* 大姐 (dà jiě): Eldest sister
* 二姐 (èr jiě): Second oldest sister
* 三姐 (sān jiě): Third oldest sister, and so on.
* 小妹 (xiǎo mèi): Youngest sister
Other related terms:
* 姐妹俩 (jiě mèi liǎ): Two sisters
* 姐妹们 (jiě mèi men): Sisters (plural)
Example:
* 我的姐姐很漂亮。 (Wǒ de jiě jie hěn piàoliang.) - My older sister is beautiful.
* 我有两个妹妹。 (Wǒ yǒu liǎng ge mèi mei.) - I have two younger sisters.
* 我们是姐妹。 (Wǒmen shì jiě mèi.) - We are sisters.
The choice of which term to use depends on the specific situation. For example, you would use "姐姐" when referring to your own older sister, but you would use "姐妹" when talking about sisters in general.