Sudan (officially the Republic of Sudan) (Arabic: السودان as-Sūdān) is the largest country in Africa and tenth largest country in the world by area. It is bordered by Egypt to the north, the Red Sea to the northeast, Eritrea and Ethiopia to the east, Kenya and Uganda to the southeast, Democratic Republic of the Congo and the Central African Republic to the southwest, Chad to the west and Libya to the northwest. The country's name derives from the Arabic Bilad-al-sudan, literally "lands of the blacks."