big league noun - Definition, pictures, pronunciation and usage notes | Oxford Advanced American Dictionary at OxfordLearnersDictionaries.com

Definition of big league noun from the Oxford Advanced American Dictionary

big league

noun

[countable]

1a group of teams in a professional sport, especially baseball, that play at the highest level

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2the big league (informal) a very successful and important group Over the past year, the company has joined the big leagues.

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