Rio Grande (for 1, rē′ō grand′; -gran′dē, -grän′dā; for 2 & 3, Portrē′o̵̅o̅ grun′də)

1. river flowing from S Colo. south through N.Mex., then southeast as the boundary between Texas and Mexico into the Gulf of Mexico: 1,885 mi (3,034 km)
2. river in SE Brazil, in the states of Minas Gerais & São Paulo; headstream of the Paraná: c. 650 mi (1,046 km)
3. seaport in SE Brazil, on the Atlantic: pop. 158,000

Etymology: Sp, lit., great river