/ Dictionary / Index K Kentucky coffee tree: Meaning and Definition of Find definitions for: Kentuck'y cof'fee tree" Pronunciation: [key] a tall North American tree, Gymnocladus dioica, of the legume family, the seeds of whichwere formerly used as a substitute for coffee beans. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Kentucky bluegrass Kentucky Derby Related Content Daily Word Quiz: eureka Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language