What does USD stand for?

What does USD mean?

USD	United States Dollars Business » International Business
USD	United States Dollars Governmental » US Government
USD	United States Dollar Regional » Currencies
USD	University of San Diego Academic & Science » Universities
USD	University Of South Dakota Academic & Science » Universities
USD	Unified School District Medical » Veterinary
USD	Under Secretary of Defense Governmental » Military
USD	User's Supplementary Documents Computing » General
USD	United School District Community
USD	Urban Sanitary District Community
USD	Universal Service Directive Computing » Telecom
USD	Union for Sustainable Development Community
USD	Union for Sustainable Development Community » Media
USD	University of Spoiled Daughters Miscellaneous » Funnies
USD	Unknown Standard Deviation Academic & Science » Mathematics
USD	User Solution Definition Computing » General
USD	Users Supplementary Documents Miscellaneous » Unclassified
USD	User Supplementary Document Computing » General
USD	Uniformly Strongly Daugavet Miscellaneous » Unclassified
USD	Until Shift Detected Miscellaneous » Unclassified
USD	Unified Storm Dominions Miscellaneous » Unclassified
USD	Union Sub District Community » Unions
USD	Uncle Sugar Daddy Miscellaneous » Funnies
USD	Betashares U.s. Dollar Etf Business » ASX Symbols
USD	United States Dollar Business » Banking