Definition of dun

• n. - A mound or small hill.
• v. t. - To cure, as codfish, in a particular manner, by laying them, after salting, in a pile in a dark place, covered with salt grass or some like substance.
• v. t. & i. - To ask or beset, as a debtor, for payment; to urge importunately.
• n. - One who duns; a dunner.
• n. - An urgent request or demand of payment; as, he sent his debtor a dun.
• a. - Of a dark color; of a color partaking of a brown and black; of a dull brown color; swarthy.