teenager

from WordNet (r) 3.0 (2006)

teenager
    n 1: a juvenile between the onset of puberty and maturity [syn:
         {adolescent}, {stripling}, {teenager}, {teen}]

from The Collaborative International Dictionary of English v.0.48

Teenager \Teen"ag`er\ (t[=e]n"[=a]j`[~e]r), n.
   a person whose age is in the teens, i.e. one between the ages
   of 13 to 19 inclusive.
   [PJC]

from Moby Thesaurus II by Grady Ward, 1.0

27 Moby Thesaurus words for "teenager":
      adolescent, baby, boy, fledgling, girl, hopeful, infant, junior,
      juvenal, juvenile, kid, minor, pubescent, sapling, slip, sprig,
      stripling, teener, teenybopper, young hopeful, young man,
      young person, younger, youngest, youngling, youngster, youth

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