coal

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

• noun A natural dark brown to black graphitelike material used as a fuel, formed from fossilized plants and consisting of amorphous carbon with various organic and some inorganic compounds.
• noun A piece of this substance.
• noun A glowing or charred piece of solid fuel.
• noun Charcoal.
• intransitive verb To burn (a combustible solid) to a charcoal residue.
• intransitive verb To provide with coal.
• intransitive verb To take on coal.

from The Century Dictionary.

• noun A piece of wood or other combustible substance, either ignited or burning (a “live coal” or “glowing coal”), or burned out or charred (a “dead coal,” charcoal, cinder).
• noun A solid and more or less distinctly stratified mineral, varying in color from dark-brown to black, brittle, combustible, and used as a fuel, not fusible without decomposition, and very insoluble.
• noun Same as slack.
• noun Coal which will not fuse together and cohere in masses when burned. It is desirable that coal should do this for forge fires in certain kinds of work.
• To burn to coal or charcoal; make into coal; char.
• To mark or delineate with charcoal.
• To provide with coal; furnish a supply of coal to or for: as, to coal a steamship or a locomotive.
• To take in coal for use as fuel: as, the vessel coaled at Portsmouth.

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

• transitive verb rare To burn to charcoal; to char.
• transitive verb To mark or delineate with charcoal.
• transitive verb To supply with coal.
• intransitive verb To take in coal.
• noun A thoroughly charred, and extinguished or still ignited, fragment from wood or other combustible substance; charcoal.
• noun (Min.) A black, or brownish black, solid, combustible substance, dug from beds or veins in the earth to be used for fuel, and consisting, like charcoal, mainly of carbon, but more compact, and often affording, when heated, a large amount of volatile matter.
• noun See Age of Acrogens, under Acrogen.
• noun See Anthracite.
• noun See under Bituminous.
• noun See under Blind.
• noun See Lignite.
• noun a bituminous coal, which softens and becomes pasty or semi-viscid when heated. On increasing the heat, the volatile products are driven off, and a coherent, grayish black, cellular mass of coke is left.
• noun a very compact bituminous coal, of fine texture and dull luster. See Cannel coal.
• noun (Geol.) a layer or stratum of mineral coal.
• noun a structure including machines and machinery adapted for crushing, cleansing, and assorting coal.
• noun (Geol.) a region in which deposits of coal occur. Such regions have often a basinlike structure, and are hence called coal basins. See Basin.
• noun a variety of carbureted hydrogen, procured from bituminous coal, used in lighting streets, houses, etc., and for cooking and heating.
• noun a man employed in carrying coal, and esp. in putting it in, and discharging it from, ships.
• noun (Geol.) A subdivision of the carboniferous formation, between the millstone grit below and the Permian formation above, and including nearly all the workable coal beds of the world.
• noun a general name for mineral oils; petroleum.
• noun (Geol.) one of the remains or impressions of plants found in the strata of the coal formation.
• noun See in the Vocabulary.
• noun [Colloq.] to call to account; to scold or censure.
• noun See Lignite.

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

• noun uncountable A black rock formed from prehistoric plant remains, composed largely of carbon and burned as a fuel.
• noun countable A piece of coal used for burning. Note that in British English the first of the following examples would usually be used, whereas in American English the latter would.
• noun countable A type of coal, such as bituminous, anthracite, or lignite, and grades and varieties thereof.
• noun countable A smouldering piece of material.
• verb To take on a supply of coal (usually of steam ships).
• verb To be converted to charcoal.

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

• verb take in coal