/ Dictionary / Index M middle game: Meaning and Definition of Find definitions for: mid'dle game" Pronunciation: [key] the stage between the opening and the end game, characterized by complicated moves by both opponents with pieces at full strength. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Middle French Middle Greek Related Content Daily Word Quiz: labyrinth Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language