disciple

Short definition from Wiktionary

Noun

1. 1
   A person who learns from another, especially one who then teaches others.
2. 2
   An active follower or adherent of someone, or some philosophy etc.
3. 3
   A wretched, miserable-looking man.
4. 4
   Any of the followers of Jesus Christ.
5. 5
   One of the twelve disciples of Jesus sent out as Apostles.
6. 6
   Ellipsis of Disciple of Christ (“member of a particular religious group”).

Verb

1. 1
   To convert (a person) into a disciple.
2. 2
   To train, educate, teach.
3. 3
   To train, educate, teach: To routinely counsel (one's peer or junior) one-on-one in their discipleship of Christ, as a fellow affirmed disciple.