oklahoma
n. countable B1 Intermediate US //ˌoʊkɫəˈhoʊmə// ok·la·homa
n. a state in the central United States known for its flat land and history of farming. It is often called the Sooner State.
n. a landlocked state in the South Central region of the United States. It is a proper noun and functions as a geographical entity.
The family moved to Oklahoma to start a new farm.
Oklahoma is a major producer of natural gas and agricultural products like wheat and cattle.
The history of Oklahoma is deeply intertwined with the forced relocation of Native American tribes and the subsequent land runs of the late nineteenth century.
From Choctaw okla (“people”) + homa (“red”).
Usage
As a proper noun, it is typically used without an article unless modifying another noun.