What is the definition of Bullying to you?

Can schools isolate out bullying and become a place where all children/students are safe?  Its really hard to think of that being a possibility.  Every school has their problems especially with bullying.  Schools try to do everything they can do to prevent it in schools.  But its going to happen regardless of the effort. 

http://www.stopbullying.gov/what-is-bullying/definition/index.html This website defines bullying as a behavior that repeats itself over whether that be for the same reason or not.  When I read this it made me think.  Does that mean if you just do it once, your not being a bully and that’s just being mean? This brings up the question that we talked about in class.  I guess this website would define the event that if it happens once its being mean, but over and over its considered bullying.  I feel if you are being mean to someone in any behavior I think that’s being a bully to them, even if it is once.  You still shouldn't be doing this to the person. 

What do you think the definition of bullying is?  Do you agree with the websites definition?