/ Dictionary / Index R roshi: Meaning and Definition of Find definitions for: ro•shi Pronunciation: (rō'shē), [key] the religious leader of a group of Zen Buddhists. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Rosh Hodesh Rosicrucian Related Content Daily Word Quiz: vertigo Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language