/ Dictionary / Index G George III: Meaning and Definition of Find definitions for: George III Pronunciation: [key] 1738–1820, king of England 1760–1820 (grandson of George II). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. George II George IV Related Content Daily Word Quiz: procrastinate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language