usa

noun ! Definition from WordNet 3.1, Princeton University. More about usa at Wordnik → Where our words come from →

1. 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. The army of the United States of America; the agency that organizes and trains soldiers for land warfare.