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general::
Phrase(s): play in the big leagues
Fig. to be involved in something of large or important proportions. (Alludes to playing a professional sport at the highest level.) • You had better shape up if you want to play in the big leagues. • The conductor shouted at the oboist, "You’re playing in the big leagues now. Tune up or ship out."
McGrawhill's American Idioms And Phrasal Verbs