Apprenticed

from WordNet (r) 3.0 (2006)

apprenticed
    adj 1: bound by contract [syn: {apprenticed}, {articled},
           {bound}, {indentured}]

from The Collaborative International Dictionary of English v.0.48

Apprentice \Ap*pren"tice\, v. t. [imp. & p. p. {Apprenticed}; p.
   pr. & vb. n. {Apprenticing}.]
   To bind to, or put under the care of, a master, for the
   purpose of instruction in a trade or business.
   [1913 Webster]