a North American river; boundary between the United States and Mexico; flows into Gulf of Mexico
a murderer (especially one who kills a prominent political figure) who kills by a surprise attack and often is hired to do the deed
a cry of approval as from an audience at the end of great performance
applaud with shouts of `bravo' or `brava'
the former capital and 2nd largest city of Brazil; chief Brazilian port; famous as a tourist attraction