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Arizona

American  
[ar-uh-zoh-nuh] / ˌær əˈzoʊ nə /

noun

  1. a state in the southwestern United States. 113,909 sq. mi. (295,025 sq. km). Phoenix. AZ (for use with zip code), Ariz.

Arizona British  
/ ˌærɪˈzəʊnə /

noun

  1. Abbreviation: Ariz..   AZ.  a state of the southwestern US: consists of the Colorado plateau in the northeast, including the Grand Canyon, divided from desert in the southwest by mountains rising over 3750 m (12 500 ft). Capital: Phoenix. Pop: 5 580 811 (2003 est). Area: 293 750 sq km (113 417 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
Arizona Cultural  

  1. State in the southwestern United States bordered by Utah to the north, New Mexico to the east, Mexico to the south, and California and Nevada to the west. Its capital and largest city is Phoenix.

Discover More

The Grand Canyon is in northwestern Arizona.

Other Word Forms

  • Arizonan adjective
  • Arizonian adjective

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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.

Early in his freshman season at Connecticut, with Reed sidelined, Reibe started for the Huskies in critical nonconference matchups against Arizona, Illinois and Kansas.

From Los Angeles Times • Apr. 23, 2026

Professor Sidor was part of the excavation team that uncovered 950 fossils of Sonselasuchus in 2014 at Petrified Forest National Park in Arizona.

From Science Daily • Apr. 23, 2026

Senator Ruben Gallego, an Arizona Democrat, noted the Wall Street Journal had reported last year that Trump pressed Warsh at a meeting to reduce borrowing costs.

From BBC • Apr. 21, 2026

They also indicated that they are focusing on defense in Arizona, Wisconsin, Iowa, Texas, Alabama, North Carolina and New Hampshire.

From Salon • Apr. 20, 2026

Moving to Arizona isn’t happening soon enough for me.

From "Clairboyance" by Kristiana Kahakauwila

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.