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United States of America

American  
[yoo-nahy-tid steyts uhv uh-mer-i-kuh] / juˈnaɪ tɪd ˈsteɪts əv əˈmɛr ɪ kə /

noun

  1. official name of the United States. U.S.A., USA


United States of America British  

noun

  1. Often shortened to: United States.   US.   USA(functioning as singular or plural) a federal republic mainly in North America consisting of 50 states and the District of Columbia: colonized principally by the English and French in the 17th century, the native Indians being gradually defeated and displaced; 13 colonies under British rule made the Declaration of Independence in 1776 and became the United States after the War of American Independence. The northern states defeated the South in the Civil War (1861–65). It is the world's most productive industrial nation and also exports agricultural products. It consists generally of the Rocky Mountains in the west, the Great Plains in the centre, the Appalachians in the east, deserts in the southwest, and coastal lowlands and swamps in the southeast. Language: predominantly English; Spanish is also widely spoken. Religion: Christian majority. Currency: dollar. Capital: Washington, DC. Pop: 316 668 567 (2013 est). Area: 9 518 323 sq km (3 675 031 sq miles)

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of United States of America

First recorded in 1770–80

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Maybe we should turn over a new leaf in the relationship with the United States of America.’

From The Wall Street Journal Jul. 20, 2026

"One of the things that really is at the center of the United States of America is immigration," said Richardson.

From BBC Jul. 4, 2026

Saturday marks the 250th anniversary of when the Declaration of Independence was adopted, marking the birth of the United States of America as an independent nation.

From MarketWatch Jul. 1, 2026

The opposite page shows a painting depicting the declaration's signing in 1776, with the words "United States of America 250."

From Barron's Jun. 27, 2026

Little Rock was in the middle of the United States of America.

From "March Forward, Girl" by Melba Pattillo Beals

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