Bully. What does the word make you think of? For some people, it's that girl at school who always makes fun of them. For others, it's the biggest guy in the neighborhood who's always trying to beat them up or take their things. Sometimes "bully" means a whole group of kids, ganging up on someone else. No matter what situation or form it comes in, bullying can make you feel depressed, hurt, and alone. It can keep you from enjoying the activities and places that are part of your life.

http://pbskids.org/itsmylife/friends/bullies/