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Jyutping gam3 sing1
Pinyin jìn shēng

Definitions (Wiktionary)
  1. verb
    to keep silent; to stop talking

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Jyutping gam3 seng1
Pinyin jìn shēng

Definitions (粵典–words.hk)
  1. 動詞
    通常​指​受到​某​啲​壓力​而​唔​出聲
    to remain silent/reticent due to some pressure
    • 好多人因為自身嘅經濟利益而噤聲。
      好多人因为自身嘅经济利益而噤声。
      hou2 do1 jan4 jan1 wai6 zi6 san1 ge3 ging1 zai3 lei6 jik1 ji4 gam3 seng1
      Many people remain reticent because of their economic interests.

[-]

Jyutping kam1 seng1
Pinyin jìn shēng

Definitions (粵典–words.hk)
  1. 動詞
    通常​指​受到​某​啲​壓力​而​唔​出聲
    to remain silent/reticent due to some pressure
    • 好多人因為自身嘅經濟利益而噤聲。
      好多人因为自身嘅经济利益而噤声。
      hou2 do1 jan4 jan1 wai6 zi6 san1 ge3 ging1 zai3 lei6 jik1 ji4 gam3 seng1
      Many people remain reticent because of their economic interests.

噤聲 [-声]

Jyutping
Pinyin jìn shēng

Definitions (CC-CEDICT)
  1. to keep silent
Examples (粵典–words.hk)
  1. Cantonese
    好多人因为自身嘅经济利益而噤声。
    好多人因為自身嘅經濟利益而噤聲。
    hou2 do1 jan4 jan1 wai6 zi6 san1 ge3 ging1 zai3 lei6 jik1 ji4 gam3 seng1
    • Many people remain reticent because of their economic interests.