/ Dictionary / Index M master hand: Meaning and Definition of Find definitions for: mas'ter hand' Pronunciation: [key] an expert: a master hand at diplomacy. great expertness: to show a master hand. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. masterful master key Related Content Daily Word Quiz: resilient Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language