A dye that turns red in alkaline, blue in acidic solutions.

(Jamaica) A red ant.

(linguistics) A major language family of sub-Saharan Africa noted for the use of a noun class system.

The Democratic Republic of the Congo, a country in Africa.

The Republic of the Congo, a country in Africa

(historical) A former colony of France (1880 – 1910), established in the present-day area of the Republic of the Congo, Gabon and the Central African Republic, later becoming French Equatorial Africa.

(historical) A Belgian colony in Africa, the successor to King Leopold II of Belgium's Congo Free State and predecessor of the Democratic Republic of the Congo.

(historical) A former colony of Portugal in Africa, now forming the Cabinda province of Angola.

An aquatic salamander of the genus Amphiuma.

plural of Congo snake