/ Dictionary / Index O Old British: Meaning and Definition of Find definitions for: Old' Brit'ish Pronunciation: [key] Brythonic as used beforea.d.800. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. old-boy network Old Bulgarian Related Content Daily Word Quiz: immense Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language