| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | frontier | American culture | The idea of the frontier is deeply rooted in American history and culture, symbolizing expansion, opportunity, and the pioneering spirit. | 1 |
| 2 | frontier | American culture | The frontier is historically associated with the expansion of the United States to the west, characterized by exploration, settlement, and development. | 1 |
| 3 | pioneer | American culture | Pioneers were early European settlers in the United States who traveled westward in search of land and opportunities. | 1 |