Informal The most prestigious level of accomplishment.(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "big league" in a sentence
"Then they all scattered — the elderly back to their chairs under the tree, the young ones to a field for soft-ball, a few men to the front porch for a big league broadcast, and the young mothers to the farmhouse where they bedded down their tots for naps."
"The kid who inherited number 2, Derek Jeter, had a pretty lack-luster performance in his big league debut."
"He could have made a big league baseball player, but he ruined his arm a-bowling."