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Jyutping hoi6
Pinyin hài

Definitions (CC-CANTO)
  1. exclamation of regret, alas!

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Jyutping haai6
Pinyin hài

Definitions (CC-CEDICT)
  1. exclamation of regret
Definitions (CC-CANTO)
  1. exclamation of regret, alas!
Definitions (Wiktionary)
  1. character
    alas (an interjection)
Definitions (Unihan)
  1. alas!
  2. Cangjie Input
    RJQR