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Jyutping bat1 jin4 ji4 jyu6
Pinyin bù yán ér yù

Definitions (CC-CEDICT)
  1. it goes without saying; it is self-evident
Definitions (粵典–words.hk)
  1. 語句
    唔​使​講都知​;​心照
    describes things that are understood without having to be said.
    • 呢啲嘢不言而喻啦,仲使我講?
      呢啲嘢不言而喻啦,仲使我讲?
      nei1 di1 je5 bat1 jin4 ji4 jyu6 laa1, zung6 sai2 ngo5 gong2?
      Everybody knows this; do I even need to say it out?
Definitions (Wiktionary)
  1. phrase, idiomatic
    to go without saying; to be self-evident
    (syn.) 不待說, 不用说, 不消說, 没说的, 不言自明, 不用說, 沒說的, 自不待言, 不消说, 不待说
Definitions (Kaifangcidian)
  1. (沒有對應漢語詞彙)
Examples (Tatoeba—Mandarin-English)
  1. Mandarin
    不言而喻。
    不言而喻。
    bù yán ér yù 。
    • That goes without saying.
Examples (粵典–words.hk)
  1. Cantonese
    呢啲嘢不言而喻啦,仲使我讲?
    呢啲嘢不言而喻啦,仲使我講?
    nei1 di1 je5 bat1 jin4 ji4 jyu6 laa1, zung6 sai2 ngo5 gong2?
    • Everybody knows this; do I even need to say it out?
  2. Cantonese
    不言而喻
    不言而喻
    bat1 jin4 ji4 jyu6
    • understood without having to be said