Friends, if you need a ‘friend’s definition :-)
If you are ‘natural-type’, fine. You are flexible. But if you are ‘suspicious-type’ or ‘question-type’, may be you need a norm 🙂 . Ya, we are about to know ‘friend’s definition.
There are 18 entries in dictionary.com for ‘friend’. It can be a person attached to another by feelings of affection or personal regard, or a person whom one knows, likes and trusts (these two seems to be the best ones).