長姉

1. Origins, structure, and basic meaning

• Structure: 長姉, read ちょうし, means one's eldest sister.
• Basic usage: It refers to an eldest sister caring for younger brothers or attending a family gathering.
  • 長姉は年の離れた弟たちの面倒をよく見ていた。

2. Common pitfalls and similar expressions

• The speaker's gender and the term
  • Korean uses different terms for an eldest sister depending on whether the speaker is female or male, but Japanese 長姉 does not change accordingly.