KJV Dictionary Definition: duke
DUKE, n. G., L, to lead; to draw, to tug. Gr.
1. In Great Britain, one of the highest order of nobility; a title of honor or nobility next below the princes; as the Duke of Bedford or of Cornwall.
2. In some countries on the Continent, a sovereign prince, without the title of king; as the Duke of Holstein, of Savoy, of Parma, &c.
3. A chief; a prince; as the dukes of Edom. Genesis 36.