| A | B |
|---|
| cash crop | a crop that was raised to be sold for a profit |
| economy | system of using goods and services |
| frontier | area just on the edge of a settled area |
| flatboat | a raft with sides |
| keelboat | boat with a bow on the bottom |
| stagecoach | wagon with a roof pulled by horses |
| cooper | person who makes barrels |
| fur trading | Missouri's first important industry |
