Vast /(vȧst)/

Vast

a.
  1. Waste; desert; desolate; lonely. [Obs.]
    The empty, vast, and wandering air.
  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.
  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.

Vast

n.
  1. A waste region; boundless space; immensity.
    Michael bid sound The archangel trumpet. Through the vast of heaven It sounded.