/ Dictionary / Index O Ottoman Empire: Meaning and Definition of Find definitions for: Ot'toman Em'pire Pronunciation: [key] a former Turkish empire that was founded about 1300 by Osman and reached its greatest territorial extent under Suleiman in the 16th century; collapsed after World War I. Cap.: Constantinople. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Ottoman Ottonian Related Content Daily Word Quiz: inutiae Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language