Definition of Osman I in English:

Osman I

(also Othman)

proper noun

  • (1259–1326), Turkish conqueror, founder of the Ottoman (Osmanli) dynasty and empire. Osman reigned as sultan of the Seljuk Turks from 1288, conquering NW Asia Minor. He assumed the title of emir in 1299.

    Othman

Pronunciation:

Osman I

/ˈɒzmən/