/ Dictionary / Index O Old French: Meaning and Definition of Find definitions for: Old' French' Pronunciation: [key] the French language of the 9th through the 13th centuries. Abbr.: OF Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Old Franconian Old Frisian Related Content Daily Word Quiz: frugal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language