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
Female labor force in the Muslim world and economic opportunities are limited. Possible explanations for this phenomenon could the same determinants of high self-employment among females and low rates of female employers: low levels of economic development, gendered employment social norms, or capital-intensive industry. This last explanation may be particularly salient in the oil-rich Muslim nations because petroleum exports are capital-intensive and require very high skilled labor which most Muslim women are incapable of providing given low levels of education. The Great Recession has increased unemployment across the board in many Muslim nations and female workers were not left unaffected. According to the World Bank, in 2009,