believerPronunciation: /bɪˈliːvə/Translate believer | into French | into German | into Italian | into Spanish Definition of believer noun 1a person who believes in the truth or existence of something: [with clause]:a firm believer that party politics has no place in local government a person who believes that a specified thing is right, effective, or acceptable:I’m a great believer in community policing 2an adherent of a particular religion; someone with religious faith: the relationship into which God invites believersbeliever in other Oxford dictionaries Definition of believer in the US English dictionary