What does "vast" mean?

Vast: 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.

Additional senses

  1. 2.Very great in numbers, quantity, or amount; as, a vast army; a vast sum of money.
  2. 3.Very great in importance; as, a subject of vast concern.
  3. 4.A waste region; boundless space; immensity. "The watery vast." Pope. Michael bid sound The archangel trumpet. Through the vast of heaven It sounded. Milton.

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