friend

[1]	(boon) companion , partner , comrade , crony , familiar , confidant(e) , intimate , Achates , alter ego , ally , compeer , acquaintance , playmate , pen-pal/(Brit) pen-friend , (Colloq) chum , pal , (Brit) cocker , (Mainly Brit/Australian/New Zealand) mate , (Australian) cobber , (US/Canadian) (bosom) buddy , (US) compadre , (Slang) (Brit) (old) china
[2]	ally , ally , associate , fellow , confederate , colleague , co-worker , compatriot , consociate , (US) cohort
[3]	room-mate , acquaintance , bunk-mate , flatmate , soul mate , bedfellow , lover , sweetheart , escort , girl , woman , girlfriend , concubine , mistress , (Old-fashioned) doxy , man , boyfriend , (Old-fashioned) beau , (Colloq) (US) alternative other , POSSLQ (Person of the Opposite Sex Sharing Living Quarters) , roomie , (Slang) baby , moll , sugar-daddy , (US) squeeze , twist , (Mainly Brit) bird
[4]	benefactor , supporter , protagonist , patron , supporter , champion , admirer , advocate , adherent , booster , backer , financier , Maecenas , angel , investor
[5]	Quaker