/ Dictionary / Index M Mongolian People's Republic: Meaning and Definition of Find definitions for: Mongo'lian Peo'ple's Repub'lic Pronunciation: [key] a republic in E central Asia, in N Mongolia. 1,380,000; ab. 600,000 sq. mi. (1,500,000 sq. km). Cap.: Ulan Bator. Formerly,Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Mongolian idiocy Mongolic Related Content Daily Word Quiz: cautious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language