Wordnet 3.0
NOUN (1)
1. 
 the conqueror of Turkey who founded the Ottoman Empire and the Ottoman dynasty that ruled Turkey after the 13th century; 
 conquered most of Asia Minor and assumed the title of emir in 1299 (1259-1326); 
[syn: Osman I, Othman I]
WordNet (r) 3.0 (2006):
Othman I
    n 1: the conqueror of Turkey who founded the Ottoman Empire and
         the Ottoman dynasty that ruled Turkey after the 13th
         century; conquered most of Asia Minor and assumed the title
         of emir in 1299 (1259-1326) [syn: Osman I, Othman I]