1. 警告;事先声明;注意事项
A caveat is a warning of a specific limitation of something such as information or an agreement.

1. (law) a formal notice filed with a court or officer to suspend a proceeding until filer is given a hearing

e.g. a caveat filed against the probate of a will

2. a warning against certain acts

e.g. a caveat against unfair practices

Synonym: caution