(n): one of the 50 states of the United States
(n): the longest river in the United States; arises in Montana and flows southeastward to become a tributary of the Mississippi at Saint Louis
(n): a large natural stream of water (larger than a creek)
(n): a member of the Siouan people formerly inhabiting the valley of the Missouri river in Missouri
(n): 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
(n): a dialect of the Chiwere language spoken by the Missouri
(n): the Siouan language spoken by the Iowa and Oto and Missouri
