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• Oklahoma
  Oklahoma

  noun

  a state in the south central United States. 69,919 square miles (181,090 square kilometers). Oklahoma City. OK (for use with zip code), Okla.
• Oklahoma!
  Oklahoma!

  A musical comedy by Richard Rodgers and Oscar Hammerstein II. It began a new era of sophistication in musical comedy and was the first of several very successful Rodgers and Hammerstein shows. “Oh, What a Beautiful Morning,” “Oklahoma,” and “People Will Say We're in Love” are songs from Oklahoma!

Oklahoma

American  

[oh-kluh-hoh-muh] / ˌoʊ kləˈhoʊ mə /

noun

1. a state in the south central United States. 69,919 square miles (181,090 square kilometers). Oklahoma City. OK (for use with zip code), Okla.

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Oklahoma British  

/ ˌəʊkləˈhəʊmə /

noun

1. Abbreviation: Okla..   OK.  a state in the S central US: consists of plains in the west, rising to mountains in the southwest and east; important for oil. Capital: Oklahoma City. Pop: 3 511 532 (2003 est). Area: 181 185 sq km (69 956 sq miles)

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Oklahoma! ¹ Cultural  

1. A musical comedy by Richard Rodgers and Oscar Hammerstein II. It began a new era of sophistication in musical comedy and was the first of several very successful Rodgers and Hammerstein shows. “Oh, What a Beautiful Morning,” “Oklahoma,” and “People Will Say We're in Love” are songs from Oklahoma!

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Oklahoma ² Cultural  

1. State in the southwestern United States, bordered by Colorado and Kansas to the north, Missouri and Arkansas to the east, Texas to the south, and New Mexico to the west. Its capital and largest city is Oklahoma City.

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Other Word Forms

• Oklahoman
  adjective

Etymology

Origin of Oklahoma

First recorded in 1895–1900; from Choctaw Oklahommaʔ “Indian (i.e., North American Indian)”, equivalent to oklah “people, nation” + ommaʔ “red,” coined by the Choctaw scholar and Presbyterian minister Allen Wright (1826–85), later principal chief of the Choctaw Nation (1866–70), and originally applied to the Indian Territory; see Five Civilized Nations ( def. ), Indian Territory ( def. )

Example Sentences

Flash back to May, the opener of the Western Conference semifinals against the Oklahoma City Thunder. a week after he had returned to the court following a month-long absence with an oblique injury.

From Los Angeles Times • Jun. 24, 2026

Veteran superstars like Boston Celtics forward Jayson Tatum and Oklahoma City guard Shai Gilgeous-Alexander already own extensions that top $70 million per season.

From MarketWatch • Jun. 23, 2026

He advanced to a runoff in an Oklahoma congressional primary this week, and then some unfortunate news broke about him.

From Slate • Jun. 19, 2026

Communities in Texas, Oklahoma, Georgia and elsewhere have wrestled with invasions in recent years.

From The Wall Street Journal • Jun. 16, 2026

Evelyn is a pretty name, and her Cherokee cousins in Oklahoma are my neighbors.

From "Legendary Frybread Drive-In" by Cynthia Leitich Smith