[n] horse of a dull brownish gray color
[n] a color varying around light grayish brown; "she wore a dun raincoat"
[adj] of a dull grayish brown to brownish gray color; "the dun and dreary prairie"
[v] make a dun color
[v] cure by salting; "dun codfish"
[v] persistently ask for overdue payment; "The grocer dunned his customers every day by telephone"
[v] treat cruelly; "The children tormented the stuttering teacher"