vast /ˈvæst/
  (a.)巨大的,龐大的;大量的,巨額的
  Vast a. [Compar. Vaster superl. Vastest.]
  1. Waste; desert; desolate; lonely. [Obs.]
     The empty, vast, and wandering air.   --Shak.
  2. Of great extent; very spacious or large; also, huge in bulk; immense; enormous; as, the vast ocean; vast mountains; the vast empire of Russia.
     Through the vast and boundless deep.   --Milton.
  3. Very great in numbers, quantity, or amount; as, a vast army; a vast sum of money.
  4. Very great in force; mighty; as, vast labor.
  5. Very great in importance; as, a subject of vast concern.
  Syn: -- Enormous; huge; immense; mighty.
  Vast, n. A waste region; boundless space; immensity. “The watery vast.”
  Michael bid sound
  The archangel trumpet. Through the vast of heaven
  It sounded.   --Milton.
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  vast
       adj : unusually great in size or amount or degree or especially
             extent or scope; "huge government spending"; "huge
             country estates"; "huge popular demand for higher
             education"; "a huge wave"; "the Los Angeles aqueduct
             winds like an immense snake along the base of the
             mountains"; "immense numbers of birds"; "at vast (or
             immense) expense"; "the vast reaches of outer space";
             "the vast accumulation of knowledge...which we call
             civilization"- W.R.Inge [syn: huge, immense, Brobdingnagian]