Hypertext Webster Gateway: "teens"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Teens \Teens\, n. pl. [See {Ten}.]
The years of one's age having the termination -teen,
beginning with thirteen and ending with nineteen; as, a girl
in her teens.
From WordNet (r) 1.7 (wn)
teens
n 1: the time of life between the ages of 12 and 20
2: all the numbers that end in -teen
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