ace, acquaintance, associate, bedfellow, bedmate, bosom buddy, buddy, bunkie, bunkmate, butty, camarade, chamberfellow, chum, classmate, colleague, comate, companion, company, compeer, comrade, confidant, confrere, consociate, consort, copartner, crony, familiar, fellow, fellow student, girl friend, gossip, intimate, mate, messmate, old crony, pal, pard, pardner, partner, playfellow, playmate, roommate, schoolfellow, schoolmate, shipmate, side partner, sidekick, teammate, workfellow, yokefellow, yokemate