sister-in-law
UK
sister-in-law n: (spouse's female sibling)
SC 姑子 gū zǐ
SC 姨妹 gū zǐ，yí mèi
My sister-in-law is coming to visit us next week.
sister-in-law n: (sibling's wife)
SC 嫂子 sǎo zi
TC 嫂子
TC 嫂子
SC 弟妹 sǎo zi，dì mèi
SC 弟媳 sǎo zi，dì xí
My sister-in-law treats my brother as if he was a child.