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Jyutping zit3 bun3
Pinyin zhé bàn

Definitions (CC-CEDICT)
  1. to reduce by fifty percent
  2. half-price
Definitions (Wiktionary)
  1. verb
    to give a 50% discount; to reduce (a price) by half
  2. noun
    half-price
    (syn.) 對拗, 对拗, 對折, 对折, 对半折, 對半折
Examples (粵典–words.hk)
  1. Cantonese
    七折半
    七折半
    cat1 zit3 bun3
    • 75% of the original price, i.e. 25% off