WordNet sense 1 (a Turk (especially a Turk who is a member of the tribe of Osman I)):

Osmanli, Ottoman Turk

WordNet sense 2 (the Turkish dynasty that ruled the Ottoman Empire from the 13th century to its dissolution after World War I):

Ottoman dynasty

WordNet sense 3 (thick cushion used as a seat):

hassock, puff, pouf, pouffe

WordNet sense 4 (a low seat or a stool to rest the feet of a seated person):

footrest, footstool, tuffet