Teenage n. : The longer wood for making or mending fences.

Example:
What causes Teenage mothers to raise children who have Teenage pregnancies?

Taxonomy
adolescents, adolescence, puberty, girls, boys, teenagers, adult, 02-20, stage, society, onset, maturation, adolescent psychology, relationships, pubescent girls, old girls, United States, free encyclopedia.

Defination from the web:
teenage years are from ages 13 to 19. However, the end of adolescence and the beginning of adulthood varies by country and by function, and ... Teenage couples at a fair in the American West. In contemporary society, adolescents also face some risks as their sexuality begins to transform. ...