From The Collaborative International Dictionary of English v.0.48:
Dun \Dun\, n. 1. One who duns; a dunner. [1913 Webster]
To be pulled by the sleeve by some rascally dun. --Arbuthnot. [1913 Webster]
2. An urgent request or demand of payment; as, he sent his debtor a dun. [1913 Webster]
From The Collaborative International Dictionary of English v.0.48:
Dun \Dun\, a. [AS. dunn, of Celtic origin; cf. W. dwn, Ir. & Gael. donn.] Of a dark color; of a color partaking of a brown and black; of a dull brown color; swarthy. [1913 Webster]
Summer's dun cloud comes thundering up. -- Pierpont. [1913 Webster]
Chill and dun Falls on the moor the brief November day. --Keble. [1913 Webster]
Dun crow (Zool.), the hooded crow; -- so called from its color; -- also called hoody, and hoddy.
Dun diver (Zool.), the goosander or merganser. [1913 Webster]
From The Collaborative International Dictionary of English v.0.48:
Dun \Dun\ (d[u^]n), n. [See Dune.] A mound or small hill. [1913 Webster]
From The Collaborative International Dictionary of English v.0.48:
Dun \Dun\, 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. [1913 Webster]
From The Collaborative International Dictionary of English v.0.48:
Dun \Dun\ (d[u^]n), v. t. & i. [imp. & p. p. Dunned (d[u^]nd); p. pr. & vb. n. Dunning (d[u^]n"n[i^]ng).] [AS. dyne noise, dynian to make a noise, or fr. Icel. dynr, duna, noise, thunder, duna to thunder; the same word as E. din. [root]74. See Din.] To ask or beset (e.g., a debtor), for payment; to urge importunately. [1913 Webster]
Hath she sent so soon to dun? --Swift. [1913 Webster]
From The Collaborative International Dictionary of English v.0.48:
Dune \Dune\ (d[=u]n), n. [The same word as down: cf. D. duin. See Down a bank of sand.] A low hill of drifting sand usually formed on the coats, but often carried far inland by the prevailing winds. [Written also dun.] [1913 Webster]
Three great rivers, the Rhine, the Meuse, and the Scheldt, had deposited their slime for ages among the dunes or sand banks heaved up by the ocean around their mouths. --Motley. [1913 Webster]
From The Collaborative International Dictionary of English v.0.48:
colorful \colorful\ adj. 1. having striking color. Opposite of colorless.
Note: [Narrower terms: changeable, chatoyant, iridescent, shot; deep, rich; flaming; fluorescent, glowing; prismatic; psychedelic; red, ruddy, flushed, empurpled]
Syn: colourful. [WordNet 1.5]
2. striking in variety and interest. Opposite of colorless or dull. [Narrower terms: brave, fine, gay, glorious; flamboyant, resplendent, unrestrained; flashy, gaudy, jazzy, showy, snazzy, sporty; picturesque] [WordNet 1.5]
3. having color or a certain color; not black, white or grey; as, colored crepe paper. Opposite of colorless and monochrome.
Note: [Narrower terms: tinted; touched, tinged; amber, brownish-yellow, yellow-brown; amethyst; auburn, reddish-brown; aureate, gilded, gilt, gold, golden; azure, cerulean, sky-blue, bright blue; bicolor, bicolour, bicolored, bicoloured, bichrome; blue, bluish, light-blue, dark-blue; blushful, blush-colored, rosy; bottle-green; bronze, bronzy; brown, brownish, dark-brown; buff; canary, canary-yellow; caramel, caramel brown; carnation; chartreuse; chestnut; dun; earth-colored, earthlike; fuscous; green, greenish, light-green, dark-green; jade, jade-green; khaki; lavender, lilac; mauve; moss green, mosstone; motley, multicolor, culticolour, multicolored, multicoloured, painted, particolored, particoloured, piebald, pied, varicolored, varicoloured; mousy, mouse-colored; ocher, ochre; olive-brown; olive-drab; olive; orange, orangish; peacock-blue; pink, pinkish; purple, violet, purplish; red, blood-red, carmine, cerise, cherry, cherry-red, crimson, ruby, ruby-red, scarlet; red, reddish; rose, roseate; rose-red; rust, rusty, rust-colored; snuff, snuff-brown, snuff-color, snuff-colour, snuff-colored, snuff-coloured, mummy-brown, chukker-brown; sorrel, brownish-orange; stone, stone-gray; straw-color, straw-colored, straw-coloured; tan; tangerine; tawny; ultramarine; umber; vermilion, vermillion, cinibar, Chinese-red; yellow, yellowish; yellow-green; avocado; bay; beige; blae bluish-black or gray-blue); coral; creamy; cress green, cresson, watercress; hazel; honey, honey-colored; hued(postnominal); magenta; maroon; pea-green; russet; sage, sage-green; sea-green] [Also See: chromatic, colored, dark, light.]
Syn: colored, coloured, in color(predicate). [WordNet 1.5]