Teenager
From Wikipedia, a free encyclopedia written in simple English for easy reading.
A teenager is a young person whose age is between thirteen and nineteen. They are called teenagers because their ages end in teen.
Teenagers often change very much during this time. This is called adolescence. Some teenagers go to middle school and some go to high school.
In England, teenagers and non-teens mix in secondary school. Teenagers may leave school at the age of sixteen.