duke (plural dukes)
- 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.
- Hypernyms: title, holder
- Coordinate terms: baron#English|baron, count#English|count, countess#English|countess, earl#English|earl, marquis#English|marquis, marquess#English|marquess, viscount#English|viscount, prince#English|prince, monarch#English|monarch
- A grand duke.
- Any of various nymphalid butterflies of the Asian genera Bassarona and Dophla.
- (slang, usually, in the plural) A fist.
- Put up your dukes!
- German: Großherzog
- Portuguese: grão-duque
duke (dukes, present participle duking; past and past participle duked)
- (transitive, informal) To hit or beat with the fists.
- (slang, transitive) To give cash to; to give a tip to.
- Synonyms: tip
- I duked him twenty dollars.
- The title of a duke.
- A male given name; mostly US and rather rare.
- A private university in North Carolina.
- Surname for service in the household of a duke, or from a nickname.
- (informal) The American actor John Wayne.
- (informal) Duke University.