| Term | Definition |
| expedition | a journey made for a special purpose |
| acre | a measurement of land equal to 43,560 square feet |
| wilderness | an area of wild land without people |
| frontier | the edge of a settled area |
| utensils | a tool that has a special purpose |
| capsize | turning over in the water |
| barter | to trade by using food instead of money |
| immigration | leaving one country to come and live in another |
| denim | cotton to make jeans |
| prejudice | The unfair dislike or hatred of a group because of their race or religion |
| manifest destiny | a belief in the right of pioneers to claim new lands |
| enterprising | trying things that are new and difficult |
| outrageous | shocking or offensive |
| durable | tough and lasting for a long time |
| homestead | a piece of land measuring 160 acres given to a settler by the U.S. government |
| exploit | to treat someone unfairly |
| thieves | people who steal |
| establish | to settle somewhere |
| skeptical | doubting that something is new |
| territory | any large area of land or region |
| locomotive | train |
| sect | group who believes in same practices |
| gallop | horse running as fast as it can |
| obsolete | out-of-date, no longer used |
| pioneer | someone who explores unknown territory |