Learn how to say Dun correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word dun:
of a dull greyish-brown colour:
a dun cow
literary dark or dusky:
when the dun evening comes
1 [mass noun] a dull greyish-brown colour.
2a horse with a sandy or sandy-grey coat, black mane, tail, and lower legs, and a dark dorsal stripe.
3a subadult mayfly, which has drab coloration and opaque wings.
an artificial fishing fly made to resemble a dun.
Old English dun, dunn, of Germanic origin; probably related to dusk