Dictionary definition · believe
verb
- accept as true; take to be true"I believed his report"
- judge or regard; look upon; judge"I think he is very smart"
- be confident about something"I believe that he will come back from the war"
- follow a credo; have a faith; be a believer"When you hear his sermons, you will be able to believe, too"
- credit with veracity"You cannot believe this man"
Source: Open English WordNet (CC BY 4.0).