n. 1. One who believes; one who is persuaded of the truth or reality of some doctrine, person, or thing. [ 1913 Webster ]
2. (Theol.) One who gives credit to the truth of the Scriptures, as a revelation from God; a Christian; -- in a more restricted sense, one who receives Christ as his Savior, and accepts the way of salvation unfolded in the gospel. [ 1913 Webster ]
Thou didst open the Kingdom of Heaven to all believers. Book of Com. Prayer. [ 1913 Webster ]
3. (Eccl. Hist.) One who was admitted to all the rights of divine worship and instructed in all the mysteries of the Christian religion, in distinction from a catechumen, or one yet under instruction. [ 1913 Webster ]