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Jyutping zyun3 sei2 sing3
Pinyin zhuǎn sǐ xìng

Definitions (粵典–words.hk)
  1. 語句
    忽然​改變​自己​嘅​習​慣​、​性格
    suddenly change one's own habit or behaviour
    • 今日咁準時,轉死性呀?
      今日咁准时,转死性呀?
      gam1 jat6 gam3 zeon2 si4, zyun3 sei2 sing3 aa4?
      You are so punctual today that you are not yourself.
Definitions (Wiktionary)
  1. verb, Cantonese, verb-object
    to accept to change a bad habit
Examples (粵典–words.hk)
  1. Cantonese
    今日咁准时,转死性呀?
    今日咁準時,轉死性呀?
    gam1 jat6 gam3 zeon2 si4, zyun3 sei2 sing3 aa4?
    • You are so punctual today that you are not yourself.