嫂 (w)

(sǎo) older brother's wife; sister-in-law

嫂嫂 (w)

(sǎosao) older brother's wife; sister-in-law; (polite address to a younger married woman) sister

嫂子 (w)

(sǎozi) (informal) older brother's wife; sister-in-law; CL:個|个[ge4]