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Jyutping wai2
Pinyin kuì

Definitions (Wiktionary)
  1. character, literary
    to heave a sigh; to sigh
Definitions (Unihan)
  1. heave sigh, sigh
  2. Cangjie Input
    RWB

喟 [-]

Jyutping
Pinyin kuì

Definitions (CC-CEDICT)
  1. to sigh