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Jyutping zi4 zi1 zam4 zam4
Pinyin zhī zhī zhēn zhēn

Definitions (粵典–words.hk)
  1. 擬聲詞
    細聲講​嘢​聲
    noise of whispering
  2. 近義詞
    吱吱斟
Definitions (Kaifangcidian)
  1. 竊竊私語 – 窃窃私语
  2. 嘰嘰咕咕 – 叽叽咕咕
  3. 輕聲說話 – 轻声说话
  4. 兩人細語 – 两人细语

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Jyutping zi1 zi1 zam1 zam1
Pinyin zhī zhī zhēn zhēn

Definitions (CC-CANTO)
  1. whisper to one another (spoken)