/ Dictionary / Index R right-hand man: Meaning and Definition of Find definitions for: right'-hand man' Pronunciation: [key] an indispensable or invaluable assistant; right hand. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. right-hander rightism 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