1.
eldest daughter; first-born daughter
The oldest daughter in a family. Used in formal contexts such as family registers, introductions, and official documents.
私は三人姉妹の長女です。
I am the eldest daughter of three sisters.
長女が今年小学校に入学する。
Our eldest daughter starts elementary school this year.
長女として家族の面倒を見る責任を感じていた。
As the eldest daughter, she felt a responsibility to take care of the family.
Compound of 長 (eldest/senior) + 女 (daughter/female).
Birth order terms in Japanese:
- 長女 (eldest daughter), 次女 (second daughter), 三女 (third daughter)
- 長男 (eldest son), 次男 (second son), 三男 (third son)
COMMON COLLOCATIONS:
- 長女として (as the eldest daughter)
- 長女が生まれる (the first daughter is born)
USAGE NOTE:
In conversation, people often say 上の娘 (older daughter) or 一番上の娘 instead. 長女 sounds more formal.