Synonyms of 'confidant'

acquaintance, adviser, alter ego, amigo, backer, brother, buttinsky, confidante, consultant, counsel, counselor, Dutch uncle, expert, familiar, fellow, fellowman, fellow creature, fidus Achates, friend, guide, instructor, intimate, kibitzer, Lover, man Friday, mate, Mentor, monitor, neighbor, Nestor, partisan, Polonius, repository, right hand, supporter, sympathizer, teacher, well-wisher