What does U.S. stand for?

What does U.S. mean?

US	Sites in the United States Internet » Domain Names
US	U Save Business » General
US	U. S. Capacitor Governmental » Suppliers
US	UltaSound Medical » Oncology
US	Ultimate Service Governmental » NASA
US	Ultimate Spas Business » Firms
US	Ultra Short Academic & Science » Electronics
US	Ultra sound Medical » British Medicine
US	Ultra Speed Governmental » Transportation
US	UltraSound Medical » Laboratory
US	UltraSound Medical » Physiology
US	Uncle Sam Community » Famous
US	Uncle Sam Governmental » US Government
US	Unconditioned Stimulus Medical » Physiology
US	Uncontested Shot Community » Sports
US	Unified System Business » General
US	Uniform System Governmental » Military
US	Unione Sportiva Community » Sports
US	Unit Secretary Business » Positions
US	Unit Separator Computing » General
US	Unit Standard Medical » Laboratory
US	United Souls Community » Religion
US	United States Regional » Countries
US	United States Governmental » Military
US	United States Community » Educational