An active follower or adherent of someone, or some philosophy etc.
A person who learns from another, especially one who then teaches others.
A wretched, miserable-looking man.
To routinely counsel (one's peer or junior) one-on-one in their discipleship of Christ, as a fellow affirmed disciple.
To convert (a person) into a disciple.
To train, educate, teach.
A strict follower of a doctrine.
One who believes dogmatically in something regardless of evidence or even conclusive proof that the thing is false or was staged; one who has true-believer syndrome.
Used other than figuratively or idiomatically: see true, believer.