Definition of "Oberon"

A fictional character in medieval and Renaissance literature, the king of the fairies, appearing for example in William Shakespeare's play A Midsummer Night's Dream.  examples

(astronomy, moons) The outermost major moon of Uranus.  examples

A town in New South Wales, Australia.  examples

A city and town in North Dakota.  examples

(computing, operating systems) A general purpose programming language and operating system descended from Modula-2, developed in the late 1980s.  examples