/ Dictionary / Index J Joshua tree: Meaning and Definition of Find definitions for: Josh'ua tree" Pronunciation: [key] an evergreen tree, Yucca brevifolia, growing in arid or desert regions of the southwestern U.S., having long, twisted branches. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Joshua Josiah Related Content Daily Word Quiz: panacea Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language