The crossword solution for the term Oklahoma is CITY, which is a four letter word. Oklahoma CITY is the capital and largest CITY of the U.S. state of Oklahoma. It is the county seat of Oklahoma County and the principal CITY of the Oklahoma CITY metropolitan area. The CITY ranks as the eighth-largest CITY in the United States by population. Oklahoma CITY is home to several professional sports teams, including the Oklahoma CITY Thunder of the National Basketball Association.