cãi

verb  

• To argue
  • đã làm sai, người ta chỉ bảo cho còn cãi
    after being shown what was wrong with his behaviour, he still argued
  • cãi nhau suốt buổi sáng mà chưa ngã ngũ
    they argued inconclusively the whole morning

• To defend, to act as advocate for
  • luật sư cố cãi cho trắng án
    the lawyer did his best to defend his client and clear him of all charges
  • cãi chày cãi cối
    to reason in a circle, to persist in advancing chicaneries