Synonyms to bosom friend

acquaintance, account, acquaintedness, advocate, alter ego, amigo, announcement, appreciation, apprehension, associate, awareness, backer, best friend, blue book, briefing, brother, bulletin, casual acquaintance, close acquaintance, close friend, colleague, communication, communique, companion, comrade, confidant, confidante, consciousness, corpus, crony, data, datum, directory, dispatch, enlightenment, evidence, experience, expertise, facts, factual base, factual information, familiar, familiarity, familiarization, favorer, fellow, fellow creature, fellowman, friend, gen, general information, grasp, guidebook, handout, hard information, incidental information, info, information, inseparable friend, instruction, intelligence, intimacy, intimate, introduction, inwardness, ken, knockdown, know-how, knowing, knowledge, light, lover, mate, mention, message, neighbor, notice, notification, other self, partisan, pickup, practical knowledge, presentation, private knowledge, privity, promotional material, proof, publication, publicity, ratio cognoscendi, release, report, repository, self-knowled