North American republic containing 50 states - 48 conterminous states in North America plus Alaska in northwest North America and the Hawaiian Islands in the Pacific Ocean; achieved independence in 1776 | a dialect of the Chiwere language spoken by the Missouri |
| a midwestern state in central United States; a border state during the American Civil War, Missouri was admitted to the Confederacy without actually seceding from the Union |
| the longest river in the United States; arises in Montana and flows southeastward to become a tributary of the Mississippi at Saint Louis |
| a member of the Siouan people formerly inhabiting the valley of the Missouri river in Missouri |