1Used as a name for the United States.the United States of America, the USA, the States, the land of the free, God's own countryView synonyms
2(also the Americas)A landmass in the western hemisphere consisting of the continents of North and South America joined by the Isthmus of Panama.
The Americas were inhabited by indigenous peoples prior to European colonization. The northeast coastline of North America was visited by Norse seamen in the 8th or 9th century, but continuing European contact with the Americas only occurred after it was reached by Christopher Columbus, who arrived in the Caribbean in 1492 and the South American mainland in 1498
The name America dates from the early 16th century and is believed to derive from the Latin form (Americus) of the name of Amerigo Vespucci, who sailed along the west coast of South America in 1501.