ability to do or act; capability of doing or accomplishing something. 2. political or national strength: the balance of power in Europe. 3. great or marked ability to do or act; strength; might; force. 4. the possession of control or command over others; authority; ascendancy: power over men's minds. 5. political ascendancy or control in the government of a country, state, etc.:
The United States shares land borders with Canada and Mexico and maritime (water) borders with Russia, Cuba, and the Bahamas in addition to Canada and Mexico.
The United States is a developed country and has the world's largest national economy by nominal and real GDP, benefiting from an abundance of natural resources and high worker productivity.While the U.S. economy is considered post-industrial, the country continues to be one of the world's largest manufacturers. citizen of the United States is an . American . United States, American and U.S. refer to the country adjectivally (American values, U.S. forces).  American  rarely refers to subjects not connected with the United States.