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Jyutping zau2 joek6 zi2
Pinyin jiǔ yào zi

Definitions (Wiktionary)
  1. noun, Xiang
    distiller's yeast; brewer's yeast; yeast for making alcoholic beverages
    (syn.) 藥子, 酒酵, 酒麴, 酒藥子, 麴, 酒餅仔, 糟嫲, 酒母, 酒餅, 糟餅, 麴種, 酒藥