[--]

Jyutping tong4 sou2
Pinyin táng sǎo

Definitions (Wiktionary)
  1. noun
    paternal cousin's wife (wife of father's brother's son older than oneself)
    (syn.) 叔伯嫂, 隔腹阿嫂

堂嫂 [--]

Jyutping
Pinyin táng sǎo

Definitions (CC-CEDICT)
  1. wife of older male cousin via male line