n. 25B6; noun
a close friend : COMPANION, boon companion, bosom friend, best friend, intimate, confidante, confidant, familiar, soul mate, alter ego, second self, playmate, playfellow, classmate, schoolmate, workmate; ally, associate; sister, brother; informal pal, chum, sidekick, crony, main man; Brit. informal mate, china, mucker; N. English informal marrow, marra; N. Amer. informal buddy, amigo, compadre, homeboy; archaic compeer.
the friends of the Royal Botanic Garden : PATRON, backer, supporter, benefactor, benefactress, sponsor; well-wisher, defender, champion; informal angel.
enemy.