[--]

Jyutping sik1 zi2
Pinyin xí zǐ

Definitions (Wiktionary)
  1. noun, archaic
    (one's) biological son
  2. noun, dialectal
    great-grandson

[--]

Jyutping sik1 zi2
Pinyin xī zǐ

Definitions (Wiktionary)
  1. noun, archaic
    (one's) biological son
  2. noun, dialectal
    great-grandson