The meaning of friend

The definition of the word friend in my own words is someone who is there for you when you need them, a person that will support you through your challenges. A person who will encourage you to do better and who will never put you down. Your friend shouldn't be called your friend if they offered you drugs or any other substance that can harm you and those who love you. They should have things in common with you and strike to be successful. I think that all this things make up a friend.