From WordNet (r) 3.0 (2006) [wn]:
teenage
adj 1: being of the age 13 through 19; "teenage mothers"; "the
teen years" [syn: adolescent, teen, teenage,
teenaged]
From The Collaborative International Dictionary of English v.0.48 [gcide]:
Teenage \Teen"age\, n.
The longer wood for making or mending fences. [Prov. Eng.]
--Halliwell.
[1913 Webster]
From The Collaborative International Dictionary of English v.0.48 [gcide]:
Teenage \Teen"age`\ (t[=e]n"[=a]j), n.
of or pertaining to a teenager; being in one's teens; as, a
busload of teenage football fans; teenage inexperience.
[PJC]