(1259–1326), Turkish conqueror, founder of the Ottoman (Osmanli) dynasty and empire. Osman reigned as sultan of the Seljuk Turks from 1288, conquering north-western Asia Minor. He assumed the title of emir in 1299.
Definition of Osman I in US English:
Osman I
(also Othman)
proper nounäsˈmän
(1259–1326), Turkish conqueror, founder of the Ottoman (Osmanli) dynasty and empire. Osman reigned as sultan of the Seljuk Turks from 1288, conquering northwestern Asia Minor. He assumed the title of emir in 1299.