01 a. Waste; desert; desolate; lonely.
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1.
Waste; desert; desolate; lonely.[Obs.]“The empty, vast, and wandering air.” — Shak.
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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.
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3.
Very great in numbers, quantity, or amount; as, a vast army; a vast sum of money.
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4.
Very great in force; mighty; as, vast labor.
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5.
Very great in importance; as, a subject of vast concern.