Noun
a river of southwestern Africa that rises in central Angola and flows east and then north (forming part of the border between Angola and Congo) and continuing northwest through Congo to empty into the Congo River on the border between Congo and Republic of the Congo
Source: WordNetOfficials said the boat was headed to Kinshasa and the accident happened near the village of Lingala, downstream the Kasai River — a tributary of the Congo River — near the city of Kwamouth. Source: Internet
The two principal river routes are: *Kinshasa to Mbandaka and Kisangani on the River Congo *Kinshasa to Ilebo on the Kasai River See the diagrammatic transport map above for other river waterways. Source: Internet