› a person you know well and like a lot, but who is usually not a member of your family: I dreamed my school friends were being chased by a whale. Today I got a call from a friend of mine. Chloë was her best friend. I moved to California, made friends (= became friends with people), and started dating. › Friend can also be used when you are speaking to someone: Well, friends, I think it’s time to go. › A person or organization that is a friend to/of a group or organization helps and supports it: The president has been no friend to small business. The Senator was a friend of business interests.