Definition of Africa in English:
Africa
proper nounˈafrɪkəˈæfrəkə
The second largest continent, a southward projection of the Old World land mass divided roughly in two by the equator and surrounded by sea except where the Isthmus of Suez joins it to Asia.
Definition of Africa in US English:
Africa
proper nounˈafrəkəˈæfrəkə
The second largest continent (11.62 million square miles; 30.1 million sq km), a southward projection of the Old World landmass divided roughly in half by the equator and surrounded by sea except where the Isthmus of Suez joins it to Asia.