A vizier (/vɪˈzɪər/, rarely /ˈvɪzjər/;Arabic: وزير; wazīr, Persian: vazīr, Turkish: vezir, Urdu: وزیر, Vazeer; sometimes spelled vazir, vizir, vasir, wazir, vesir, or vezir) is a high-ranking political advisor or minister. The Abbasid caliphs gave the title wazir to a minister formerly called katib (secretary) who was at first merely a helper, but afterwards became the representative and successor of the dapir (official scribe or secretary) of the Sassanian kings.
In modern usage, the term has been used for ministers in the Arab world, Iran, Turkey, East Africa (Kenya, Tanzania and Somalia) Afghanistan, Pakistan, India, Tajikistan and Uzbekistan, Hungary.