姉御

1. Origins, structure, and basic meaning

• Structure: 姉御 is read as あねご and is a noun for a strong, dependable woman treated as a big-sister figure by companions or younger people.
• Basic usage: Use 彼女を姉御と呼ぶ for the title given to her and 物語の姉御 for the role of a character.

2. Common pitfalls and similar expressions

• Kinship and social role
  • It is not limited to a biological sister; the focus can be a woman who serves as a trusted adviser to younger members.
• Character of the title
  • と呼ぶ shows that others use it as a title, so it is not a neutral general label for any woman.