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Jyutping gong2 zi2
Pinyin gǎng zi

Definitions (Wiktionary)
  1. noun, Xiang
    small tributary river (flowing from a larger river)
  2. noun, Beijing, Mandarin
    Hong Kong dollar
    (syn.) 港圓, 西紙 dated, 鹹水 dated, 港幣, 港紙 argot, 香港鐳, 港紙, 港子 argot, 港元, 港票, 香港紙, 鹹龍 dated, 鹹龍, 港銀

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Jyutping gong2 zi2
Pinyin gǎng zǐ

Definitions (Wiktionary)
  1. name
    Gangzih, Gangzi (a rural village in Baisha, Penghu, Taiwan)