Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun believer

2 senses of believer

Sense 1
believer, truster -- (a supporter who accepts something as true)
       => supporter, protagonist, champion, admirer, booster, friend -- (a person who backs a politician or a team etc.; "all their supporters came out for the game"; "they are friends of the library")

Sense 2
believer, worshiper, worshipper -- (a person who has religious faith)
       => religious person -- (a person who manifests devotion to a deity)