believer
noun [ C ] uk/bɪˈliː.vər/ us/bɪˈliː.vɚ/
宗教信仰者;信徒
a person who has a religious belief or who strongly believes that something is right or good
She's been a believer since she survived a terrible car accident. 自从遭遇了可怕的车祸之后，她就成了一名宗教信徒。
Harvey's a great believer in health food. 哈维特别迷信健康食品。
I'm a great believer in allowing people to make their own mistakes. 我认为应当允许人犯错误。