Entry 6 senses · 5 variants Webster, 1913 Dun /(dŭn)/ · IPA /dʌn/ n. v. t. v. t. & i. n. a. 01 n. A mound or small hill. 1. A mound or small hill. 02 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… 1. 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. 03 v. t. & i. To ask or beset (e.g., a debtor), for payment; to urge importunately. imp. & p. p. Dunned; p. pr. & vb. n. Dunning 1. To ask or beset (e.g., a debtor), for payment; to urge importunately. “Hath she sent so soon to dun?” — Swift. 04 n. One who duns; a dunner. 1. One who duns; a dunner. “To be pulled by the sleeve by some rascally dun.” — Arbuthnot. 2. An urgent request or demand of payment; as, he sent his debtor a dun. 05 a. Of a dark color; of a color partaking of a brown and black; of a dull brown color; swarthy. 1. Of a dark color; of a color partaking of a brown and black; of a dull brown color; swarthy. “Summer's dun cloud comes thundering up.” — Pierpont. “Chill and dun Falls on the moor the brief November day.” — Keble. Phrases & compounds Dun crow — the hooded crow; -- so called from its color; -- also called hoody, and hoddy. Dun diver — the goosander or merganser.