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Jyutping suk1 zi2
Pinyin shú zi

Definitions (Wiktionary)
  1. noun, Gan, Hakka, Mandarin, dialectal
    paternal uncle (father's younger brother)
  2. noun, Gan, Mandarin, Xiang, dialectal
    brother-in-law (husband's younger brother)

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Jyutping suk1 zi2
Pinyin shū zi

Definitions (CC-CEDICT)
  1. brother-in-law
  2. husband's younger brother
Definitions (Wiktionary)
  1. noun, Gan, Hakka, Mandarin, dialectal
    paternal uncle (father's younger brother)
  2. noun, Gan, Mandarin, Xiang, dialectal
    brother-in-law (husband's younger brother)