/ Dictionary / Index F Fourth Republic: Meaning and Definition of Find definitions for: Fourth' Repub'lic Pronunciation: [key] the republic established in France in 1945 and replaced by the Fifth Republic in 1958. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. fourth position fourth wall Related Content Daily Word Quiz: philtrum Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language