The male ruler of a duchy (female equivalent: duchess).
The sovereign of a small state.
A high title of nobility; the male holder of a dukedom.
A grand duke.
Any of various nymphalid butterflies of the Asian genera Bassarona and Dophla.
(usually in the plural) A fist.
Put up your dukes!
To hit or beat with the fists.
To give cash to; to give a tip to.
I duked him twenty dollars.