| abandoned area(expression, location, economy, military) |
| available area(expression, location, economy, military) |
| blank area(expression, location, economy, military) |
| disengaged area(expression, location, economy, military) |
| empty area(expression, location, economy, military) |
| free area(expression, location, economy, military) |
| free territory(expression, location, economy, military) |
| inactive area(expression, location, economy, military) |
| leisure area(expression, location, economy, military) |
| not lived in area(expression, location, economy, military) |
| open area(expression, location, economy, military) |
| open space(expression, location, economy, military) |
| spare area(expression, location, economy, military) |
| uninhabited area(expression, location, economy, military) |
| unoccupied territory(expression, location, economy, military) |
| untenanted area(expression, location, economy, military) |
| unused area(expression, location, economy, military) |
| vacant area(expression, location, economy, military) |
| piece of unoccupied ground(expression, location, economy, military) |
| unoccupied area(expression, location, economy, military) |