1. (noun) 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

• mo
• show me state

2. (noun) the longest river in the United States; arises in Montana and flows southeastward to become a tributary of the Mississippi at Saint Louis

• missouri river

1. (noun) a member of the Siouan people formerly inhabiting the valley of the Missouri river in Missouri

• siouan
• sioux

2. (noun) a dialect of the Chiwere language spoken by the Missouri

• chiwere

1. (noun) 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

• confederacy
• confederate states
• confederate states of america
• dixie
• dixieland
• south