Liberia lībēr´ēə [key] (New Lat.,=place of freedom), officially Republic of Liberia, republic (2005 est. pop. 3,482,000), 43,000 sq mi (111,370 sq km), W Africa. Liberia fronts on the Atlantic Ocean for some 350 mi (560 km) on the southwest and is bordered on the northwest by Sierra Leone, on the