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Underground vs Coal - What's the difference?

underground | coal |

As a proper noun underground

is (uk|rail transport) the london underground.

As a noun coal is

(uncountable) a black rock formed from prehistoric plant remains, composed largely of carbon and burned as a fuel.

As a verb coal is

to take on a supply of coal (usually of steam ships).

underground

English

Adjective

(en adjective)
  • (label) Below the ground; below the surface of the Earth.
  • *{{quote-magazine, date=2014-06-14, volume=411, issue=8891, magazine=(The Economist)
    • , title= It's a gas , passage=One of the hidden glories of Victorian engineering is proper drains. Isolating a city’s effluent and shipping it away in underground sewers has probably saved more lives than any medical procedure except vaccination.}}
  • (hidden)Hidden, furtive, secretive.
  • Of music, art, etc, outside the mainstream.

    • Synonyms

    * (below the ground) subterranean * (hidden) clandestine, hidden, hush-hush, secret * (outside the mainstream) avant-garde, unconventional

    Adverb

    (en adverb)
  • Below the ground.
    • The tunnel goes underground at this point.
  • Secretly.

    • Synonyms

    * (below the ground) below ground * (secretly) clandestinely, in secret, on the quiet

    Noun

    (en noun) (wikipedia underground)
  • (chiefly, British) An underground railway.
  • A movement or organisation of people who resist political convention.
  • A movement or organisation of people who resist artistic convention.

    • Synonyms

    * (underground railway) metro, (the underground railway of Paris), subway (US), Tube (British - the underground railway of London) * (movement or organisation of people who resist political convention) resistance * (movement or organisation of people who resist artistic convention) avant-garde, counter-culture

    Verb

    (en verb)
  • To route electricity distribution cables underground
  • * {{quote-book
    • , year=1962 , year_published=1998 , publisher=Island Press , editor=Carolyn Merchant , author=David Pesonen , title=Green Versus Gold: Sources in California's Environmental History , chapter=Battles Over Energy citation , isbn=9781559635806 , page=325 , passage=One is to underground where no other alternative will work, and this method should be used universally in urban regions as it now is in “downtown” sections.}}
  • * {{quote-book
    • , year=2004 , publisher=Transportation Research Board , editor=Transportation Research Board Committee on Utilities , author=Don L. Ivey and C. Paul Scott , title=Utilities and Roadside Safety , chapter=Solutions , volume_plain=State of the Art Report 9 citation , isbn=9780309094511 , page=9 , passage=Also, undergrounding' may not eliminate the potential for crashes with other roadside objects, such as trees, walls, buildings, and so forth. [...] When looking at the fesibility of ' undergrounding utilities, the complete roadside area and nearby adjacent properties should be evaluated for potential roadside obstructions or hazards.}}
  • * {{quote-book
    • , year=2006 , year_published= , publisher=CRC Press , author=Janes Northcote-Green, Robert Wilson , title=Control and Automation of Electrical Power Distribution Systems , chapter=Design, Construction and Operation of Distribution Systems, MV Networks citation , isbn=9780824726317 , page=110 , passage=The utility now wants the network to be undergrounded in the urban areas, which would mean substations with 33 kV distribution swtichgear.}}

    See also

    * underground railway * go underground ----

    coal

    English

    (wikipedia coal)

    Noun

    (en-noun)
  • (uncountable) A black rock formed from prehistoric plant remains, composed largely of carbon and burned as a fuel.
  • (countable) A piece of coal used for burning. Note that in British English either of the following examples could be used, whereas the latter would be more common in American English.
    • Put some coals on the fire.
    Put some coal on the fire.
  • (countable) A type of coal, such as bituminous, anthracite, or lignite, and grades and varieties thereof.
  • (countable) A glowing or charred piece of coal, wood, or other solid fuel.
    • Just as the camp-fire died down to just coals , with no flames to burn the marshmallows, someone dumped a whole load of wood on, so I gave up and went to bed.
  • Charcoal

    • Hyponyms

    * anthracite, bitumin

    Derived terms

    * bituminous coal, soft coal * brown coal * channel coal * coal ball * coal bed * coal black * coalboy * coal gas * coal hole * coal oil * coal tar * coal tit * coalmine, coal mine * coals to Newcastle * hard coal (see: anthracite) * white coal

    Related terms

    () * charcoal * colliery

    Verb

    (en verb)
  • To take on a supply of coal (usually of steam ships).
  • * 1890 , (Oscar Wilde), The Picture of Dorian Gray , ch. XVI:
    • The light shook and splintered in the puddles. A red glare came from an outward-bound steamer that was coaling .
  • To be converted to charcoal.
  • * 1957 , H.R. Schubert, History of the British Iron and Steel Industry , p. 18:
    • As a result, particles of wood and twigs insufficiently coaled are frequently found at the bottom of such pits.
  • To burn to charcoal; to char.
  • * Francis Bacon
    • Charcoal of roots, coaled into great pieces.
  • To mark or delineate with charcoal.
    • (Camden)
  • To supply with coal.
    • to coal a steamer

    Anagrams

    *