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Jyutping waa6 caa4 ji4
Pinyin huà chár

Definitions (Wiktionary)
  1. noun, dialectal
    undertone of one's words; meaning behind words

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Jyutping waa6 caa4 ji4
Pinyin huà chá r5

Definitions (CC-CEDICT)
  1. erhua variant of 話茬|话茬[hua4 cha2]