- Rhymes: -uːk
- The title of a duke.
- A male given name from English; mostly US and rather rare.
- A private university in North Carolina.
- A surname for service in the household of a duke, or from a nickname.
- (informal) The American actor John Wayne.
- 2000, Dana Stabenow, Midnight Come Again, →ISBN, page 4:
- "Whoa there, pardner," Kiril said in his best Duke impression, and grabbed hold of the armrest to keep from rolling into Fyodor's lap.
- (informal) Duke University.