姘妇 pīnfù mistress Definitions Defs Origin Strokes Stroke Words Sentences Sents 姘 pīn extramarital partner (bound form) A partner in an illicit relationship or extramarital affair, such as in 姘夫 pīnfū or 姘妇 pīnfù妇 婦 fù noun woman (bound form) adult woman; also used in terms relating to women's health