SINCE 1828
the big leagues
plural nounDefinition of the big leagues
US
: the two highest U.S. baseball leagues (the American League and the National League)
He always dreamed of playing in the big leagues.
—often used figuratively She's moving up to the big leagues in the television industry.She's in the big leagues now, working for a major law firm in a large city.
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Merriam-Webster unabridged
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