From Longman Dictionary of Contemporary EnglishSouth AmericaˌSouth Aˈmerica the fourth-largest continent in the world, between the Atlantic and Pacific Oceans, which goes from the southern coast of the Caribbean Sea (in the north) to Tierra del Fuego (in the south). It includes the Andes Mountains, the Amazon River, and large areas of tropical rainforest, as well as many large cities. Its largest country is Brazil. The main language in Brazil is Portuguese, but in all the other countries of South America, the main language is Spanish. → see also Latin America —South American adjective, noun