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Jyutping siu2 suk1
Pinyin xiǎo shú

Definitions (Wiktionary)
  1. noun
    brother-in-law (husband's younger brother)
  2. noun
    paternal uncle (father's youngest brother)
    (syn.) 細叔, 细叔, 满叔, 滿叔

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Jyutping siu2 suk1
Pinyin xiǎo shū

Definitions (CC-CEDICT)
  1. husband's younger brother
  2. brother-in-law
Definitions (Wiktionary)
  1. noun
    brother-in-law (husband's younger brother)
  2. noun
    paternal uncle (father's youngest brother)
    (syn.) 細叔, 细叔, 满叔, 滿叔