Kasai

geographical name
Ka·​sai | \ kə-ˈsī How to pronounce Kasai (audio) \

Definition of Kasai

1 river 1338 miles (2153 kilometers) long that rises in central Angola, flows east then north, forming part of the boundary between Angola and the Democratic Republic of the Congo, and then north and west into the Congo River
2 region of the south central part of the Democratic Republic of the Congo