Definition for

bonanza

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– Very extensive and profitable. Compare bonanza, n., 2.

noun – A term in common use in the Pacific States, signifying a rich mass of ore: opposed to borrasca.

noun – Hence—2. A mine of wealth; a profitable thing; good luck: as, to strike a bonanza.

noun – In mining, a rich mine or vein of silver or gold; hence, anything which is a mine of wealth or yields a large income.

noun – In mining, a rich mine or vein of silver or gold.

noun – The point at which two mother lodes intersect

noun – By extension, anything which is a mine of wealth or yields a large income or return.

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