The definition of beaucoup is a slang expression that means many or much.
(adjective)Ten million dollars is an example of beaucoup money.
See beaucoup in Webster's New World College Dictionary
noun
Origin: Fr
adverb
adjective
Origin: < beaucoup
See beaucoup in American Heritage Dictionary 4
adjective
Origin:
Origin: French
Origin: : beau, bel, fine, handsome; see beau
Origin: + coup, stroke; see coup
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