1. The time of life between the ages of 12 and 20
   "He learned to drive in his teens"
    
2. All the numbers that end in '-teen'
   "The teens include thirteen, fourteen, and nineteen"

1. A juvenile between the onset of puberty and maturity
   "The teen awkwardly navigated his first school dance";
   - adolescent, stripling [archaic], teenager

Type of: juvenile, juvenile person, large integer, time of life

Part of: adulthood, maturity

Encyclopedia: Teens