n. In Great Britain, the title of a nobleman holding the lowest rank in the peerage; a member of the baronage: as, Baron Arundell of Wardour; a Scotch baron.n. A title of the judges or officers of the English Court of Exchequer, hence called barons of the Exchequer, the president of the court being called chief baron.n. In law and heraldry, a husband: as, baron and feme, husband and wife.n. On the continent of Europe, especially in France and Germany, a member of the lowest order of hereditary nobility: in Germany, same as Freiherr.