妹妹
Basic Meaning
n
Used to refer to a younger female sibling in a family context. Often affectionate, as in 好妹妹 or 小妹妹.
younger sister (from the same parents, or same father or same mother)
同父母（或只同父、只同母）而年纪比自己小的女子。
Words:
好妹妹小妹妹
Synonyms:
堂妹表妹姐妹
Sentences:
- 我的好妹妹今年十岁了。My good younger sister is ten years old this year.
- 小妹妹正在学习中文。The little younger sister is learning Chinese.
n
Used for younger female relatives in extended family or clan settings, such as cousins. Can be affectionate, e.g., 亲妹妹 or 乖妹妹.
younger female cousin or relative (from the same clan or generation)
同族同辈而年纪比自己小的女子。
Words:
亲妹妹好妹妹乖妹妹
Synonyms:
堂妹表妹
Sentences:
- 乖妹妹帮我做了作业。My good younger cousin helped me with my homework.