teen

n. teenager, person between the ages of 13 and 19; suffering, torment (Archaic)

Adolescence is a transitional stage of human development that occurs between childhood and adulthood. Adolescent humans go through puberty, the process of sexual maturation. Teenagers (ages 13-19) are usually adolescent, though in some individuals, puberty may extend a few years beyond the teenage years, and in some individuals, puberty begins in the pre-teen years.
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Adjective
1. being of the age 13 through 19; "teenage mothers"; "the teen years"
(synonym) adolescent, teenage, teenaged
(similar) young, immature

n. teen, teenager, person between the ages of 13 and 19

n. toe, one of the digits of the foot; clove, one of a number of small sections which form a compound bulb (as in garlic)