義姉

1. Origins, structure, and basic meaning

• Structure: 義姉(ぎし) refers to an in-law in an older-sister relationship, such as an older brother's wife or a spouse's older sister.
• Basic usage: It appears when discussing an older brother's wife at family gatherings or activities with one's wife's older sister.

2. Common pitfalls and similar expressions

• More than one family relationship
  • 兄の妻 and 妻の姉 are different relationships, but both can be expressed as 義姉.
  • Korean translation calls for a more specific kinship term based on how the people are related.
• The scope of English sister-in-law
  • Sister-in-law covers both older- and younger-sister relationships, so the English expression alone does not always establish 義姉.