Definition of "Sudan"

A country in North Africa and East Africa.

1. Turkish Sudan; autonym Turkiyyah; Sudan under the Eyalet of Egypt, from 1820 to 1885  examples

2. Mahdist State, also known as Mahdist Sudan or the Sudanese Mahdiyya, from 1885 to 1898  examples

3. Anglo-Egyptian Sudan, a condominium of the United Kingdom and Egypt from 1899 to 1955  examples

4. Republic of the Sudan, since 1955  examples

A climatic zone characterized by savannas and mosaic forests running in a belt just south of the Sahel in West and East Africa  examples

(historical) Mali (when it was under French colonial rule as Soudan).