Word: 一口 (yīkǒu) 一口 dictionary entry yīkǒu readily; flatly (deny, admit and so on); a mouthful; a bite Full dictionary entry for 一口 Example sentences using 一口 2 sentences, showing page 1 of 1. 他把杯子拿起来喝了一口。 Tā bǎ bēizi ná qǐlai hēle yìkǒu. He picked up his cup and took a sip. 我可以吃一口吗？ Wǒ kěyǐ chī yìkǒu ma? Can I have a bite?