n. A chief; a prince; a commander; a leader: as, “the dukes of Edom,”n. In Great Britain, France, Italy, Spain, and Portugal, a hereditary title of nobility, ranking next below that of prince, but in some instances a sovereign title, as in those of the dukes of Burgundy, Normandy, Lorraine, etc. (see 3, below), or borne as his distinguishing title by a prince of the blood royal.n. A sovereign prince, the ruler of a state called a duchy.n. A name of the great eagle-owl of Europe, Bubo maximus, called grand-duc by the French.n. plural The fists.To play the duke.n. A dialectal (Scotch) form of duck.n. A vehicle having a victoria body suspended at the front on scroll-irons. At the rear is a rumble for a footman. It is sometimes driven by a postilion. Now called a ladies' driving-phaëton.