United States

American  

[yoo-nahy-tid steyts] / yuˈnaɪ tɪd ˈsteɪts /

noun

(used with a singular verb)

1. Official Name United States of America.  a federal republic in the northern Western Hemisphere comprising 48 contiguous states, the District of Columbia, Alaska in North America, and Hawaii in the North Pacific, and in some contexts considered along with its five inhabited island territories (Puerto Rico, U.S. Virgin Islands, Guam, North Mariana Islands,American Samoa ). Conterminous United States, 3,119,885 square miles (8,080,465 square kilometers); with Alaska and Hawaii, 3,796,742 square miles (9,833,517 square kilometers); all 50 states, the District of Columbia, and the island territories, 3,805,927 square miles (9,857,306 square kilometers) Washington, D.C. U.S., US

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Other Word Forms

• anti–United States adjective
• pro–United States adjective

Etymology

Origin of United States

First recorded in 1600–10, in reference to the United Provinces of the Netherlands, and in 1770–80 for the United States of America ( def. )

Example Sentences

The principle was affirmed more than 125 years ago in United States v.

From Los Angeles Times • Apr. 4, 2026

“There will be a lasting role for the United States in assisting the nations of the Persian Gulf.”

From The Wall Street Journal • Apr. 4, 2026

Alcatraz, which opened as a federal penitentiary in 1934, was once considered among the most secure prisons in the United States due to its isolated island location and the strong currents surrounding it.

From Barron's • Apr. 3, 2026

Eight people from different African countries have been deported to Uganda from the United States, the first such transfer under a migration deal signed last year.

From BBC • Apr. 3, 2026

It has been a few hours now since President Abraham Lincoln swore to “preserve, protect, and defend the United States Constitution.”

From "The Detective's Assistant" by Kate Hannigan