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Jyutping tung4 fu6 ji6 mou5
Pinyin tóng fù yì mǔ

Definitions (CC-CEDICT)
  1. (of siblings) having the same father but different mothers
  2. half (brother or sister)
Definitions (Wiktionary)
  1. adj
    born of the same father but a different mother
    (syn.) 共爷隔娘, 仝爸各母, 共爺隔娘
Definitions (Kaifangcidian)
  1. (沒有對應漢語詞彙)
Examples (Tatoeba—Mandarin-English)
  1. Mandarin
    每次我坠入爱河,爸爸就告诉我那个女孩是我同父异母的妹妹。
    每次我墜入愛河,爸爸就告訴我那個女孩是我同父異母的妹妹。
    měi cì wǒ zhuì rù ài hé , bà ba jiù gào sù wǒ nà ge nǚ hái shì wǒ tóng fù yì mǔ de mèi mei 。
    • Every time I fall in love, Dad tells me the girl is my half sister.