trainee

trainee
    n 1: someone who is being trained
    

46 Moby Thesaurus words for "trainee":
      apprentice, auditor, autodidact, baby, beginner, boot, catechumen,
      conscript, deb, debutant, draft, drafted man, draftee, educatee,
      enlistee, enrollee, entrant, fledgling, freshman, greenhorn,
      greeny, inductee, infant, inquirer, learner, levy, monitor,
      neophyte, nestling, newcomer, novice, novitiate, praepostor,
      prefect, probationer, pupil, raw recruit, recruit, rookie, scholar,
      selectee, self-taught person, student, studier, tenderfoot, tyro