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Jyutping tung4 o1
Pinyin tóng kē

Definitions (Wiktionary)
  1. noun, Hokkien, Quanzhou, Xiamen
    copper coin; copper
    (syn.) 銅鐳, 銅元, 铜镭, 銅板, 铜板, 铜子儿, 銅子兒, 铜元