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Jyutping hung1 hau2
Pinyin kōng kǒu

Definitions (CC-CEDICT)
  1. incomplete meal of a single dish
  2. meat or vegetable dish without rice or wine
  3. rice without meat or vegetables
Definitions (粵典–words.hk)
  1. 副詞
    齋食​一​啲​應該​連埋飯​一齊​食​嘅​餸
    plainly; to eat without rice
    • 空口食辣椒醬
      空口食辣椒酱
      to eat chili sauce without rice
Definitions (Wiktionary)
  1. noun
    empty talk; lip service; mere verbal statement
  2. adv
    without rice or wine (while eating dishes); with nothing to go with rice or wine
  3. noun, Xiamen, Zhangzhou-Hokkien
    hole; cavity
  4. noun, Xiamen, Zhangzhou-Hokkien
    entrance to a cave
    (syn.) 洞口
  5. noun, Xiamen, Zhangzhou-Hokkien
    wound; cut
Definitions (Kaifangcidian)
  1. (沒有對應漢語詞彙)
Examples (粵典–words.hk)
  1. Cantonese
    条友无读过大学就批评教授教书点唔得,空口讲白话。
    條友無讀過大學就批評教授教書點唔得,空口講白話。
    • X
  2. Cantonese
    空口食辣椒酱
    空口食辣椒醬
    • to eat chili sauce without rice
Examples (Wiktionary)
  1. Mandarin
    指望你今天送钱来,原来是空口说白话。
    指望你今天送錢來,原來是空口説白話。
    zhǐ wàng nǐ jīn tiān sòng qián lái , yuán lái shì kōng kǒu shuō bái huà .
    • I expected you to send money today, but it turned out to be empty talk.
  2. Mandarin
    空口无凭,立字为证。
    空口無憑,立字為證。
    kōng kǒu wú píng , lì zì wéi zhèng .
    • Words of mouth being no guarantee, a written statement is hereby given.