Iowa and Siouan

Iowa noun - A member of the Siouan people formerly living in Iowa and Minnesota and Missouri.

Siouan and Iowa are semantically related. In some cases you can use "Siouan" instead a noun "Iowa".

Siouan noun - A member of a group of North American Indian peoples who spoke a Siouan language and who ranged from Lake Michigan to the Rocky Mountains.

Iowa and Siouan are semantically related. Sometimes you can replace term "Iowa" with "Siouan", this nouns are similar.