Synonyms and related words :
ace, amigo, associate, bedfellow, bedmate, birthmate, bosom buddy, buddy, bunkie, bunkmate, butty, camarade, chamberfellow, chum, classmate, clubmate, colleague, comate, companion, company, compeer, comrade, concubine, confrere, consociate, consort, copartner, copemate, copesmate, couchmate, cradlemate, crony, cupmate, doxy, fellow, fellow student, friend, general partner, girl friend, gossip, jailmate, kept mistress, kept woman, mate, messmate, mistress, old crony, pal, paramour, pard, pardner, partner, pewmate, playfellow, roommate, schoolfellow, schoolmate, secret partner, shelfmate, shipmate, shopmate, side partner, sidekick, sidekicker, silent partner, sleeping partner, special partner, tablemate, teammate, tentmate, unofficial wife, watchmate, waymate, woman, workfellow, yokefellow, yokemate