The meaning of the Acronym USA is...

USA is

• Unicast Source Address

More Meanings For USA:

• Unicast Source Address
• Underground Service Alert
• United States of America
• United States of America
• Uneven Surface Argument
• United States of America
• United Students for Abstinence
• University of Southern Alabama
• Ugly Stupid Assholes
• U Submit to Angle
• Useless Stupid Asses
• Uselees, Stupid, And Assinine
• Ugly Stupid Arabs
• United Stockgrowers of America
• The United States Of Asia

USA is also in:

• Adults
• Farming
• Funnies
• Geology
• Libraries
• Mathematics
• Networking
• Ocean Science
• Telecom
• Universities