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Jyutping zing1 jyut6 zing3 si4
Pinyin zhēng yuè zhèng shí

Definitions (Wiktionary)
  1. noun, Hokkien, Singapore, Taiwan, Xiamen
    first three days of the first month of the Chinese lunar calendar (also sometimes the first five days)
    (syn.) 正月, 正月正头, 正月正頭