| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | isthmus | South America | An isthmus is a significant geographical feature connecting two larger landmasses, such as the Isthmus of Panama in Central and South America. | 1 |
| 2 | isthmus | South America | Isthmuses are particularly significant in Central and South America, where they have historically influenced trade routes, migration patterns, and geopolitical relationships. | 1 |
| 3 | isthmus | South American | Isthmuses are important geographical features connecting land masses and influencing trade and cultural exchange between North and South America. | 1 |