Brazil. Brazil, officially the Federative Republic of Brazil, is the largest and easternmost country in South America and Latin America. It is the world's fifth-largest country by area and the seventh largest by population, with over 203 million people. Brazil is a federation composed of 26 states and a Federal District, which hosts the capital, Bras??lia. Its most populous city is S??o Paulo, followed by Rio de Janeiro. Brazil has the most Portuguese speakers in the world and is the only country in the Americas where Portuguese is an official language. It is among the world's most multicultural and ethnically diverse nations, due to over a century of mass immigration from around the world. Bounded by the Atlantic Ocean on the east, Brazil has a coastline of 7,491 kilometers (4,655 mi). Covering roughly half of South America's land area, it borders all other countries and territories on the continent except Ecuador and Chile. Brazil encompasses...