| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | control tower | South Korea | Control towers are essential for ensuring safety and efficiency in the busy airspace of modern cities. | 1 |
| 2 | control tower | South Korea | Control towers are crucial for efficiently coordinating the busy air traffic at major airports. | 1 |
| 3 | round tower | Korea | Associated with ancient pagodas and Buddhist architecture, often serving as religious structures | 1 |