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Pronunciation:  `undur'graûnd

WordNet Dictionary
  1. [n]  electric underground railway
  2. [n]  a secret group organized to overthrow a government or occupation force
  3. [adv]  beneath the surface of the earth; "water flowing underground"
  4. [adv]  in or into hiding or secret operation; "the organization was driven underground"
  5. [adj]  used of independent armed resistance forces; "guerrilla warfare"; "partisan forces"
  6. [adj]  conducted with or marked by hidden aims or methods; "clandestine intelligence operations"; "cloak-and-dagger activities behind enemy lines"; "hole-and-corner intrigue"; "secret missions"; "a secret agent"; "secret sales of arms"; "surreptitious mobilization of troops"; "an undercover investigation"; "underground resistance"
  7. [adj]  under the level of the ground; "belowground storage areas"; "underground caverns"

UNDERGROUND is a 11 letter word that starts with U.


 Synonyms: belowground, clandestine, cloak-and-dagger, covert, guerilla(a), guerrilla(a), hole-and-corner(a), hugger-mugger, hush-hush, irregular, metro, on the quiet(p), partisan, partizan, resistance, secret, subsurface, subway, surreptitious, tube, undercover
 See Also: Maquis, railroad, railroad line, railway, railway line, railway system, revolutionary group



Webster's 1913 Dictionary
  1. \Un"der*ground`\, n.
    The place or space beneath the surface of the ground;
    subterranean space.
          A spirit raised from depth of underground. --Shak.
  2. \Un"der*ground`\, a.
    1. Being below the surface of the ground; as, an underground
       story or apartment.
    2. Done or occurring out of sight; secret. [Colloq.]
    {Underground railroad} or {railway}. See under {Railroad}.
  3. \Un"der*ground`\, adv.
    Beneath the surface of the earth.
Dream Dictionary
 Definition: Dreaming that you live underground, symbolizes loss of fortune and reputation and the desire for greater security and peace of mind. You may be pushing thoughts and issues into your subconscious mind. Dreaming that you are riding in an underground railway means anxiety and distress arising from a peculiar activity.