What do the different names of years mean in american schools?

We often hear of sorority, freshman, etc (I can't remember the rest) but not coming from the states they actually have little meaning. What do all the different names mean and what ages of kids are they referring to?



Thanks|||In the United States your first year of high school is 9th grade and it begins when you are 14-15 years old. This year you are a freshman.



10th grade you are a sophomore and 15-16 years old.



11th grade you are a junior and 16-17 years old.



12th grade you are a senior and 17-18 years old.



You graduate at the end of your senior year and head off to college or jobs. Most are about 18 years old when they graduate.

mor