The term BRAZIL MAP WORD is composed of three crossword solutions: SAO (3 letters), RIO (3 letters). SAO is the acronym for São Paulo, the most populous city in Brazil and the capital of the state of São Paulo. RIO is the acronym for Rio de Janeiro, the second-most populous city in Brazil and the capital of the state of Rio de Janeiro. Together, these two cities form the core of the Brazilian economy and are two of the most important cities in South America.