Who is a Friend?

What's your definition of the term "friend"?
Here's mine, a friend is:

• Someone who knows the real me
• Someone who always tells me the truth and doesnt lie to me to make me feel better
• Someone I can count on in good or bad times
• Someone who knows my faults and still appreciates me for who I am
• Someone who I can call in the middle of the night if I have a nightmare

I can go on forever but I guess this would do for now.