- Republic of, a former name of the Democratic Republic of the Congo.
- official name within the Democratic Republic of the Congo of the Congo River (the term Congo River is more widely used elsewhere).
- the former name (1971–97) of the Democratic Republic of Congo
- (formerly) the Zaïrian name (1971–97) for the (River) Congo (def. 3)
African nation (1971-1997), from an early alternative name of the Congo River, from Kikongo nzai, dialectal form of nzadi “river.”
See Democratic Republic of Congo.