/ Dictionary / Index G Game Master: Meaning and Definition of Find definitions for: Game' Mas"ter Pronunciation: [key] the person who controls a role-playing game. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. gamely game of chance Related Content Daily Word Quiz: neologism Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language