friend

A member of the Religious Society of Friends founded by George Fox (the Friends have never called themselves Quakers).

A person who backs a politician or a team etc.

“they are friends of the library”

An associate who provides cooperation or assistance.

A person with whom you are acquainted.

“we are friends of the family”

A person you know well and regard with affection and trust.

“he was my best friend at the university”