Arkansas and Arkansas River

Arkansas noun - A river that rises in the Rocky Mountains in Colorado and flows southeast through Kansas and Oklahoma and through Arkansas to become a tributary of the Mississippi River.

Arkansas River and Arkansas are semantically related. In some cases you can use "Arkansas River" instead a noun "Arkansas".

Arkansas River noun - A river that rises in the Rocky Mountains in Colorado and flows southeast through Kansas and Oklahoma and through Arkansas to become a tributary of the Mississippi River.

Arkansas and Arkansas River are semantically related. You can use "Arkansas" instead a noun phrase "Arkansas River".