dun1 Syllabification: (dun)Pronunciation: /dən/Definition of dun adjective of a dull grayish-brown color:a dun cow literary dark; dusky:when the dun evening comes noun 1a dull grayish-brown color. 2a thing that is dun in color, in particular. a horse with a sandy or sandy-gray coat, black mane, tail, and lower legs, and a dark dorsal stripe. a sub-adult mayfly, which has drab coloration and opaque wings. an artificial fishing fly imitating this. Origin: Old English dun, dunn, of Germanic origin; probably related to duskdun in other Oxford dictionaries Definition of dun in the British & World English dictionary
