/ Dictionary / Index P Pony League: Meaning and Definition of Find definitions for: Po'ny League" Pronunciation: [key] a baseball league similar to a Little League and having teams whose players are from 13 to 14 years of age. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. pony express pony pack Related Content Daily Word Quiz: acquiesce Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language