A trainee, especially in a skilled trade.
One who is bound by indentures or by legal agreement to serve a tradesperson, or other person, for a certain time, with a view to learn the art, or trade, in which his master is bound to instruct him.
To put under the care and supervision of a master, for the purpose of instruction in a trade or business.
To be an apprentice to.
An expert in a given field.