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Jyutping hong1
Pinyin kuāng

Definitions (Wiktionary)
  1. character, onomatopoeic
    clash; bang
Definitions (Unihan)
  1. syllable
  2. Cangjie Input
    RSMG

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Jyutping gwaang1
Pinyin kuāng

Definitions (CC-CEDICT)
  1. (onom.) clang
  2. see 哐啷, clatter
Definitions (CC-CANTO)
  1. (onom.) clang/see 哐啷, clatter