also: おとよめ
younger brother's wife; sister-in-law (younger brother's spouse)
Refers specifically to the wife of one's younger brother. Not used for an older brother's wife (兄嫁).
My younger brother's wife is very good at cooking.
Next month, my younger brother's wife is due to have her first child.
Abbreviated form using 乙 for 弟; rare and somewhat old-fashioned.