1. A person who accepts something as true or places trust in someone
   "He was a believer in the goodness of humanity";
   - truster
    
2. A person who has religious faith
   "The church was filled with devout believers";
   - worshiper [US], worshipper

Derived forms: believers

Type of: admirer, booster, champion, friend, protagonist, religious person, supporter

Part of: denomination

Encyclopedia: Believer