嫂嫂 sǎosao sister-in-law Definitions Defs Origin Strokes Stroke Words Sentences Sents sǎosao sister-in-law 嫂 sǎo reduplication sister-in-law (bound form) the wife of one's older brother; sister-in-lawsǎosao sister 嫂 sǎo reduplication [respectful address] (bound form) a polite way to address a married woman of similar age, or the wife of a friend