How to Say “Younger sister” in Chinese
Relationships and family · HSK 1
"Younger sister" in Chinese is 妹妹 (mèi mei). 妹妹 (mèimei) is younger sister. Paralleling the brother terms, Chinese splits by age AND gender, four slots total for siblings.
Primary translation
妹妹
mèi mei
When to use it
妹妹 (mèimei) is younger sister. Paralleling the brother terms, Chinese splits by age AND gender, four slots total for siblings. 妹 (single character) is used casually to call out to a younger female, or as an affectionate nickname among close friends. The generation up is 阿姨 (āyí, aunt / mother's sister; also used for unrelated middle-aged women). 小妹 (xiǎo mèi) is an affectionate "little sister" but also used in service contexts addressing young women; use carefully.
Example sentences
我有一个妹妹。
Wǒ yǒu yí ge mèimei.
I have one younger sister.
妹妹在读高中。
Mèimei zài dú gāozhōng.
My younger sister is in high school.
她是我表妹。
Tā shì wǒ biǎomèi.
She is my cousin (younger female).