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Jyutping ngoi6 syun1 zi2
Pinyin wài sūn zi

Definitions (CC-CEDICT)
  1. (coll.) daughter's son
  2. grandson
Definitions (Wiktionary)
  1. noun, colloquial
    grandson (daughter's son)
    (syn.) 外甥, 外甥孫, 外孫兒, 甥, 外孫, 外孫伢, 外外, 外孫子