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Jyutping hung4 mun4 zi2 dai6
Pinyin hóng mén zǐ dì

Definitions (粵典–words.hk)
  1. 名詞
    黑社會​分子
    Literally "member of the Hung League (an anti-Qing group active near Guangdong in 19th century)", figuratively "members of organizations involved in illegal activities, particularly Triads".
    • 阿松走咗去做洪門子弟,但係兩嘢就因為太冇用畀人掟返出嚟。
      阿松走咗去做洪门子弟,但系两嘢就因为太冇用畀人掟返出嚟。
      A-chung joined a Triad gang, but soon he got thrown out because he's too useless.

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Jyutping hung4 mun4 zi2 dai6
Pinyin hóng2men zǐ3di

Definitions (CC-CANTO)
  1. triad brothers [colloquial]
Examples (粵典–words.hk)
  1. Cantonese
    阿松走咗去做洪门子弟,但系两嘢就因为太冇用畀人掟返出嚟。
    阿松走咗去做洪門子弟,但係兩嘢就因為太冇用畀人掟返出嚟。
    • A-chung joined a Triad gang, but soon he got thrown out because he's too useless.
  2. Cantonese
    洪门子弟
    洪門子弟
    • a triad member