friend

noun

1. 1

   a person with whom you are acquainted

   I have trouble remembering the names of all my acquaintances

   we are friends of the family

2. 2

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

   I have trouble remembering the names of all my acquaintances

   we are friends of the family

3. 3

   an associate who provides cooperation or assistance

   he's a good ally in fight

4. 4

   a person you know well and regard with affection and trust

   he was my best friend at the university

5. 5

   a person who backs a politician or a team etc.

   all their supporters came out for the game

   they are friends of the library