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.
A trainee, especially in a skilled trade.
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 operative person or thing.
Any of a class of behaviors that produce consequences by operating (i.e., acting) upon the environment.
That operates to produce an effect.