Sultan to as a sultanate ( "). The term is distinct from king ( "), despite both referring to a sovereign ruler. The use of "sultan" is restricted to Muslim countries, where the title carries religious significance, contrasting the more secular "king", which is used in both Muslim and non-Muslim countries. A feminine form of "sultan", used by Westerners, is Sultana or Sultanah and this title has been used legally for some (not all) Muslim women monarchs and sultan's mothers and chief consorts. However, Turkish and Ottoman Turkish also uses "sultan" for imperial lady, as Turkish grammar—which is influenced by Persian
Haseki sultan Haseki sultan Haseki Sultan (, "Ḫāṣekī Sulṭān;" ) was the imperial title used for the chief consort of an Ottoman Sultan. Haseki sultan meant "chief consort" or "single favorite" of the sultan. In later years, the meaning of the title changed to "imperial consort". Hürrem Sultan, principal consort of Suleiman the Magnificent, was the first holder of this title. The title haseki sultan was only used until the 17th century. After that, "Kadınefendi" became the highest ranking title for imperial consorts. The word "haseki" (خاصکي-خاصگی) comes from the Arabic word Khassa خاصه which is suffixed with the Persian "gi" گی