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Jyutping gaa1 bou2
Pinyin jiā bǔ

Definitions (Wiktionary)
  1. verb, Min-Nan
    to supplement; to augment; to add
    (syn.) 增補, 增补
Examples (粵典–words.hk)
  1. Cantonese
    佢考试𠮶日病咗,所以要参加补考。
    佢考試嗰日病咗,所以要參加補考。
    keoi5 haau2 si5 go2 jat6 beng6 zo2, so2 ji5 jiu3 caam1 gaa1 bou2 haau2.
    • He was sick on the day of the examination, so he will take the make-up examination.