A learner of a craft; one who is bound by legal agreement to serve an employer in the exercise of some handicraft, art, trade, or profession, for…

A person who learns a trade, craft, art, or profession from an employer; = apprentice, n. 1.

Originally: a youth working in a skilled manual trade or occupation as a means of gaining the skills and experience required to become proficient; an…

A person, esp. a young person, working entirely or partly without wages for the purpose of improving his or her knowledge of or skill at a…

A person or (formerly) an animal undergoing training.

Youth Opportunities Programme; also, a young person taking part in this scheme.