Common Usage & Traps
- 妹妹 — younger sister
- 姐妹 — sisters
- 小妹 — little sister
- 兄妹 — older brother and younger sister
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妹姐姐妹Chinese family terms usually put the older sibling first, so 'sisters' is 姐妹, not 妹姐.
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一个妹一个妹妹When meaning 'a younger sister,' 妹 is normally used as the reduplicated 妹妹, not alone.