U.S. money is known as the dollar, and Brazilian money is known as the real.
The Brazilian real (plural reais) uses the symbol R$, whereas the U.S. dollar (plural dollars) uses the $ symbol.
Frequently used bills in U.S. money are $1, $5, $10, $50 and $100. Frequently used bills in Brazilian money are R$2, R$5, R$10, R$20, R$50 and R$100.
Frequently used Brazilian coins are 5 centavos, 10 centavos, 25 centavos, 50 centavos and the R$1 coin. Common U.S. coins are the penny (1 cent), nickel (5 cents), dime (10 cents) and quarter (25 cents).
Both the U.S. and Brazilian monies have anticounterfeit measures built into their respective bills, including intricate drawings, visual effects, translucent areas and color.
The United States Mint prints U.S. money under the authority of the U.S. Department of the Treasury. Brazilian money is printed by Casa da Moeda do Brasil under the authority of the Central Bank of Brazil.