1. United States, United States of America, America, the States, US, U.S., USA, U.S.A.
usage: North American republic containing 50 states - 48 conterminous states in North America plus Alaska in northwest North America and the Hawaiian Islands in the Pacific Ocean; achieved independence in 1776
2. United States Army, US Army, U. S. Army, Army, USA, agency, federal agency, government agency, bureau, office, authority
usage: the army of the United States of America; the agency that organizes and trains soldiers for land warfare