age difference 

The reason it's illegal to date a 30 year old when you're 13 or be molested by a 30 year old when you're 13. Pretty much self-explanitory, the difference in age between two people.

You're 13 and you're dating a 30 year old?! Isn't there a sleight age difference??

age difference by Tom DeLonge_Lover July 20, 2008

age difference 

determined by the interim in which an official learners permit is recieved. a.e. I got my permit two years before you, therefore I am two years older than you.

The age difference between us is two years (oh pwned sammy)

age difference by axel foley June 30, 2005