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Jyutping baat3 hoi1
Pinyin bā kāi

Definitions (CC-CEDICT)
  1. octavo
Definitions (Wiktionary)
  1. noun
    octavo; 8vo
  2. adv, Xiang
    most likely
    (syn.) 八成, 九成九
Examples (粵典–words.hk)
  1. Cantonese
    八开
    八開
    baat3 hoi1
    • octavo; 8vo (equivalent to B4)