Synonyms and related words :
ace, amigo, associate, associate with, assort with, bedfellow, bedmate, bosom buddy, buddy, bunkie, bunkmate, butty, camarade, chamberfellow, chum, chum together, chum with, classmate, clique, clique with, club together, colleague, comate, companion, company, compeer, comrade, confrere, consociate, consort, consort with, copartner, crony, fellow, fellow student, fellowship, flock together, fraternize, girl friend, gossip, hang around with, hang out with, herd together, hobnob with, join, join in fellowship, keep company with, mate, messmate, mingle with, mix with, old crony, pal up with, pal with, pard, pardner, partner, playfellow, playmate, roommate, run, run in couples, run with, schoolfellow, schoolmate, shipmate, side partner, sidekick, sort with, take up with, teammate, tie up with, workfellow, yokefellow, yokemate