/ Dictionary / Index G grapefruit league: Meaning and Definition of Find definitions for: grape'fruit league" Pronunciation: [key] — Baseball Informal. Baseball Informal. a series of training games played by major-league teams before the opening of the season (so named because they take place in the citrus-growing South, as in Florida). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. grapefruit grape hyacinth Related Content Daily Word Quiz: blanch Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language