mud

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun Wet, sticky, soft earth, as on the banks of a river.
• noun Slang Wet plaster, mortar, or cement.
• noun Slanderous or defamatory charges or comments.
• transitive verb To cover or spatter with or as if with mud.

from The Century Dictionary.

• noun Moist and soft earth or earthy matter, whether produced by rains on the earthy surface, by ejections from springs and volcanoes, or by sediment from turbid waters; mire.
• To bury in mud or mire; cover or bedaub with mud.
• To make turbid or foul with dirt; stir the sediment in (liquors).
• To go in or under the mud, for refuge or warmth, as does the eel.
• To fill with mud or soft clay, as the crevices between the logs in a log house.

from the GNU version of the Collaborative International Dictionary of English.

• transitive verb rare To bury in mud.
• transitive verb To make muddy or turbid.
• noun Earth and water mixed so as to be soft and adhesive.
• noun (Zoöl.) a fresh-water fish (Acantharchum pomotis or Acantharchus pomotis) of the Eastern United States. It produces a deep grunting note.
• noun an immersion of the body, or some part of it, in mud charged with medicinal agents, as a remedy for disease.
• noun a large flatboat used in dredging.
• noun See mud cat in the vocabulary.
• noun (Zoöl.) any one of several American marine crabs of the genus Panopeus.
• noun (Zoöl.) the winter flounder. See Flounder, and Dab.
• noun (Zoöl.) a mud wasp; the mud-dauber.
• noun (Zoöl.) the fellbender.
• noun (Steam Boilers) a drum beneath a boiler, into which sediment and mud in the water can settle for removal.
• noun (Zoöl.) a long, slender, aquatic amphibian (Siren lacertina), found in the Southern United States. It has persistent external gills and only the anterior pair of legs. See Siren.
• noun (Zoöl.) a European frog (Pelobates fuscus).
• noun (Zoöl.) The clapper rail.
• noun [Slang] a person who cleans sewers, or delves in mud.
• noun (Zoöl.) any small American fresh-water fish of the genus Umbra, as Umbra limi. The genus is allied to the pickerels.
• noun a plug for stopping the mudhole of a boiler.
• noun (Zoöl.) the menobranchus.
• noun [U.S.] a heavy scow, used in dredging; a mud boat.
• noun (Zoöl.) any one of numerous species of fresh-water tortoises of the United States.
• noun (Zoöl.) any one of numerous species of hymenopterous insects belonging to Pepæus, and allied genera, which construct groups of mud cells, attached, side by side, to stones or to the woodwork of buildings, etc. The female places an egg in each cell, together with spiders or other insects, paralyzed by a sting, to serve as food for the larva. Called also mud dauber.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun A mixture of water and soil or fine grained sediment.
• noun A plaster-like mixture used to texture or smooth drywall.
• noun Wet concrete as it is being mixed, delivered and poured.
• noun figuratively Willfully abusive, even slanderous remarks or claims, notably between political opponents.
• noun slang Money, dough, especially when proceeding from dirty business.
• noun slang stool that is exposed as a result of anal sex
• noun geology A particle less than 62.5 microns in diameter, following the Wentworth scale
• verb transitive To make muddy, dirty
• verb transitive To make turbid
• verb intransitive, Internet To participate in a MUD, or multi-user dungeon.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• verb plaster with mud
• noun slanderous remarks or charges
• verb soil with mud, muck, or mire
• noun water soaked soil; soft wet earth