elder sister; big sister
Humble term used to refer to one's own elder sister when speaking to someone outside the family. Also used in yakuza or gang contexts to refer to a senior female member, or affectionately to an older woman one respects.
My elder sister is always in your care.
The gang's big sister is very caring.
big-sisterly disposition; natural inclination to look after others
Standard kanji spelling.
Variant kanji spelling; 姐 can carry a slightly rougher or more informal nuance.
Compound of 姉 (ane, 'elder sister') and 御 (go, honorific suffix). The exact historical development is uncertain, but it likely arose as a respectful or humble way to refer to an elder sister within certain social groups.