Someone you can cry on, someone you fight with but work through it. A friend isn't someone who likes to be mean a friend is someone who can be seen in public with you even if you're the grossest kid in school XD. A friend is someone who won't replace you with an old friend or a new one. A friend will include you in everything.
Jill: "Omg! Have you seen the way Ceoni and Bryan and Tierra stick together! They're such great friends! I think they were in kindergarten together.
Sarah: "They're going to grow up to become very important or amazing people together."