(1):
(superl.) Very great in numbers, quantity, or amount; as, a vast army; a vast sum of money.
(2):
(superl.) Very great in importance; as, a subject of vast concern.
(3):
(superl.) Of great extent; very spacious or large; also, huge in bulk; immense; enormous; as, the vast ocean; vast mountains; the vast empire of Russia.
(4):
(superl.) Waste; desert; desolate; lonely.
(5):
(n.) A waste region; boundless space; immensity.
A timeless resource no serious scholar should be without. With more than 75,000 entries, if it is a word used in the Bible, you are sure to find it defined here.Wikipedia
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