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Jyutping kwok3
Pinyin huò

Definitions (Wiktionary)
  1. character
    Only used in 泧漷 (“tempestuous, turbulent (of a current)”).

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Jyutping kwok3
Pinyin huǒ

Definitions (Wiktionary)
  1. character
    Used in 漷縣/漷县 (“name of a hamlet in Tongzhou District, Beijing, China”).
  2. character
    name of an ancient river in Beijing
Definitions (Unihan)
  1. river in Hebei province
  2. Cangjie Input
    EYDL

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Jyutping kwok3
Pinyin kuò

Definitions (CC-CEDICT)
  1. clashing of two currents
Definitions (Wiktionary)
  1. character
    name of an ancient river in Shandong province