a male holding the highest hereditary title in the British and certain other peerages

news broke of the duke's departure

the 11th Duke of Argyll

the fists, especially when raised in a fighting attitude

he wasn't afraid to put up his dukes to defend his honour

fight it out

the spectacle of two gigantic beasts duking it out in an epic monster showdown

getting an offer accepted often means having to duke it out with another buyer