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Jyutping jan1 jau4
Pinyin yīn yóu

Definitions (CC-CEDICT)
  1. reason
  2. cause
  3. predestined relationship (Buddhism)
Definitions (粵典–words.hk)
  1. 名詞
    事情​發​生​嘅​原因​(​量​詞​:​個​)
    reason; cause; origin
    • 你有乜因由要殺人?
      你有乜因由要杀人?
      nei5 jau5 mat1 jan1 jau4 jiu3 saat3 jan4
      What is the reason for killing him?
Definitions (Wiktionary)
  1. noun
    hetu and prataya; principal and secondary causes
  2. noun
    reason; cause; origin
Definitions (Kaifangcidian)
  1. (沒有對應漢語詞彙)
  2. 原因
Examples (粵典–words.hk)
  1. Cantonese
    因由
    因由
    jan1 jau4
    • cause; reason
  2. Cantonese
    你有乜因由要杀人?
    你有乜因由要殺人?
    nei5 jau5 mat1 jan1 jau4 jiu3 saat3 jan4
    • What is the reason for killing him?