n. A sovereign; a king; by extension, a royal personage of either sex.n. The title of the ruler of a principality: as, the Prince of Waldeck; the former Princes of Orange.n. A title of nobility in certain countries on the continent, superior to duke: as, Prince Bismarck; Prince of Condé.n. A courtesy title given to non-regnant members of royal families, and often confined to the younger sons of the sovereign: as, Prince Arthur (of Great Britain); Prince Henry (of Prussia); the eldest sons are usually called prince with a territorial title (as Prince of Wales, in Great Britain; Prince of Naples, in Italy), crown prince (Greece), prince imperial (Austria, Germany, etc.), prince royal (Denmark, Sweden, etc.), or duke with a territorial title (as Duke of Sparta, in Greece; Duke of Brabant, in Belgium).n. A courtesy title given in some relations to dukes, marquises, and earls in Great Britain. See the quotation.n. One who is preëminent in his class or profession: as, a merchant prince; a prince of good fellows.n. A title of the emperor of Austria (as Grand Prince of Transylvania).To play the prince; put on a stately arrogance: with a complementary it.