Uˌnited ˌStates of Aˈmerica, the BrE AmE ( also the Uˌnited ˈStates, ) abbreviation , the US, the USA
a country in North America, made up of 50 states and the District of Columbia, where the capital is. Population: 303,824,646 (2008). Capital: Washington, D.C. The United States one of the world’s most important industrial nations, and one of its richest countries. With its powerful armed forces, it a military ‘superpower’. The US is often called ‘America.’