noun, plural Kon·gos, (especially collectively) Kon·go for 1.
Examples from the Web for kongo
The land on either side of this river for many miles is called the Kongo Valley.Big People and Little People of Other Lands|Edward R. Shaw
Andrew Battell, fortunately, has left behind him a fairly circumstantial record of what he experienced in Kongo and Angola.The Strange Adventures of Andrew Battell|Andrew Battell
In the south the Kongo dialects melt imperceptibly into the closely-allied Angola language.
The Kongo has a long stretch of navigable water, but is interrupted by rapids below Stanley Pool.Commercial Geography|Jacques W. Redway
Dictionary and Grammar of the Kongo Language, 1887, p. xxiii.Man, Past and Present|Agustus Henry Keane