Synonyms: brother, buddy, chum, crony, sidekick, pal
Definition: a close friend who accompanies his buddies in their activities
Similar words: friend
Definition: a person you know well and regard with affection and trust
Usage: he was my best friend at the university
Synonyms: chum up, pal, pal up
Definition: become friends; act friendly towards
Similar words: befriend
Definition: become friends with
Usage: John and Eric soon became friends; Have you made friends yet in your new environment?