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Jyutping cai4 gwok3
Pinyin qí guó

Definitions (CC-CEDICT)
  1. Qi state of Western Zhou and the Warring states (1122-265 BC), centered in Shandong
Definitions (Wiktionary)
  1. name
    Qi, an ancient Chinese duchy, viscounty, and kingdom under the Zhou dynasty
    (syn.) 齊, 齐