[1] : The Collaborative International Dictionary of English v.0.48

coal \coal\ k=ol, n. as. col; akin to d. kool, ohg. chol,
   cholo, g. kohle, icel. kol, pl., sw. kol, dan. kul; cf. skr.
   jval to burn. cf. kiln, collier.
   1. a thoroughly charred, and extinguished or still ignited,
      fragment from wood or other combustible substance;
      charcoal.
      1913 webster

   2. 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.
      1913 webster

   note: this word is often used adjectively, or as the first
         part of self-explaining compounds; as, coal-black; coal
         formation; coal scuttle; coal ship. etc.
         1913 webster

   note: in england the plural coals is used, for the broken
         mineral coal burned in grates, etc.; as, to put coals
         on the fire. in the united states the singular in a
         collective sense is the customary usage; as, a hod of
         coal.
         1913 webster

   age of coal plants. see age of acrogens, under acrogen.
      

   anthracite or glance coal. see anthracite.

   bituminous coal. see under bituminous.

   blind coal. see under blind.

   brown coal or brown lignite. see lignite.

   caking coal, 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.

   cannel coal, a very compact bituminous coal, of fine
      texture and dull luster. see cannel coal.

   coal bed geol., a layer or stratum of mineral coal.

   coal breaker, a structure including machines and machinery
      adapted for crushing, cleansing, and assorting coal.

   coal field geol., a region in which deposits of coal
      occur. such regions have often a basinlike structure, and
      are hence called coal basins. see basin.

   coal gas, a variety of carbureted hydrogen, procured from
      bituminous coal, used in lighting streets, houses, etc.,
      and for cooking and heating.

   coal heaver, a man employed in carrying coal, and esp. in
      putting it in, and discharging it from, ships.

   coal measures. geol.
      a strata of coal with the attendant rocks.
      b 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.

   coal oil, a general name for mineral oils; petroleum.

   coal plant geol., one of the remains or impressions of
      plants found in the strata of the coal formation.

   coal tar. see in the vocabulary.

   to haul over the coals, to call to account; to scold or
      censure. colloq.

   wood coal. see lignite.
      1913 webster
see also:
kiln collier age of coal plants age of acrogens acrogen anthracite 
glance coal bituminous coal bituminous blind coal blind 
brown coal brown lignite lignite caking coal cannel coal 
coal bed coal breaker coal field coal basins basin 
coal gas coal heaver coal measures coal oil coal plant 
coal tar to haul over the coals wood coal 

[2] : The Collaborative International Dictionary of English v.0.48

coal \coal\, v. t. imp.  p. p. coaled; p. pr.  vb. n.
   coaling.
   1. to burn to charcoal; to char. r.
      1913 webster

            charcoal of roots, coaled into great pieces.
                                                  --bacon.
      1913 webster

   2. to mark or delineate with charcoal. --camden.
      1913 webster

   3. to supply with coal; as, to coal a steamer.
      1913 webster
see also:
coaled coaling 

[3] : The Collaborative International Dictionary of English v.0.48

coal \coal\, v. i.
   to take in coal; as, the steamer coaled at southampton.
   1913 webster

[4] : WordNet (r) 2.0

coal
     n 1: fossil fuel consisting of carbonized vegetable matter
          deposited in the carboniferous period
     2: a hot glowing or smouldering fragment of wood or coal left
        from a fire syn: ember
     v 1: burn to charcoal; "without a drenching rain, the forest fire
          will char everything" syn: char
     2: supply with coal
     3: take in coal; "the big ship coaled"
see also:
ember char 

[5] : Moby Thesaurus II by Grady Ward, 1.0

120 moby thesaurus words for "coal":
   alcohol, anthracite, ash, ashes, benzine, blaze, blister, brand,
   briquette, brown coal, bunker, burn, burn in, burn off, burnable,
   burning ember, butane, calx, carbon, cast, cater, cauterize, char,
   charcoal, cinder, clinker, coke, combustible, coom, crack, crow,
   cupel, detonate, dope, dross, ebon, ebony, ember, ethane, ethanol,
   explode, feed, fill up, fireball, firebrand, firing, flame,
   flammable, flammable material, forage, found, fuel, fuel additive,
   fuel dope, fuel up, fulminate, fume, gas, gas carbon, gas up,
   gasoline, heptane, hexane, inflammable, inflammable material, ink,
   isooctane, jet, jet fuel, kerosene, lava, lignite, live coal,
   methane, methanol, natural gas, night, octane, oil, oxidate,
   oxidize, paraffin, parch, peat, pentane, pitch, propane,
   propellant, provender, provision, purvey, pyrolyze, raven, reek,
   refuel, rocket fuel, scorch, scoria, sea coal, sear, sell, singe,
   slag, sloe, smoke, smudge, smut, solder, soot, stoke, sullage,
   swinge, tar, top off, torrefy, turf, vesicate, victual, vulcanize,
   weld

[6] : Easton's 1897 Bible Dictionary

coal
   it is by no means certain that the hebrews were acquainted with
   mineral coal, although it is found in syria. their common fuel
   was dried dung of animals and wood charcoal. two different words
   are found in hebrew to denote coal, both occurring in prov.
   26:21, "as coal heb. peham; i.e., "black coal" is to burning
   coal heb. gehalim." the latter of these words is used in job
   41:21; prov. 6:28; isa. 44:19. the words "live coal" in isa. 6:6
   are more correctly "glowing stone." in lam. 4:8 the expression
   "blacker than a coal" is literally rendered in the margin of the
   revised version "darker than blackness." "coals of fire" 2 sam.
   22:9, 13; ps. 18:8, 12, 13, etc. is an expression used
   metaphorically for lightnings proceeding from god. a false
   tongue is compared to "coals of juniper" ps. 120:4; james 3:6.
   "heaping coals of fire on the head" symbolizes overcoming evil
   with good. the words of paul rom. 12:20 are equivalent to
   saying, "by charity and kindness thou shalt soften down his
   enmity as surely as heaping coals on the fire fuses the metal in
   the crucible."
   

[7] : U.S. Gazetteer Counties (2000)

coal -- u.s. county in oklahoma
   population 2000:    6031
   housing units 2000: 2744
   land area 2000:     518.220288 sq. miles 1342.184327 sq. km
   water area 2000:    3.074923 sq. miles 7.964014 sq. km
   total area 2000:    521.295211 sq. miles 1350.148341 sq. km
   located within:       oklahoma ok, fips 40
   location:             34.577081 n, 96.296455 w
   headwords:
    coal
    coal, ok
    coal county
    coal county, ok

Coal >> C Words
Coal, definition of term: Coal
coal_pag1.html

Coal Scuttle >> C Words
Coal Scuttle, definition of term: Coal Scuttle
coal+scuttle_pag1.html

Coal Miner >> C Words
Coal Miner, definition of term: Coal Miner
coal+miner_pag1.html

Coal Gas >> C Words
Coal Gas, definition of term: Coal Gas
coal+gas_pag1.html

Pea Coal >> P Words
Pea Coal, definition of term: Pea Coal
pea+coal_pag1.html

Bituminous Coal >> B Words
Bituminous Coal, definition of term: Bituminous Coal
bituminous+coal_pag1.html

Anthracite Coal >> A Words
Anthracite Coal, definition of term: Anthracite Coal
anthracite+coal_pag1.html