| Answer | Crossword Clue |
|---|---|
| REVET | Build a retaining wall. |
| REVET | Build a retaining wall, as a fortification. |
| REVET | Make a retaining wall. |
| counterfort | a buttress or arch supporting a retaining wall |
| HAHA | Ditch with a retaining wall used to divide land |
| counterforts | COUNTERFORT, a buttress or arch supporting a retaining wall |
| pile | long beam driven into the ground as part of a foundation or retaining wall |
| piles | long beam driven into the ground as part of a foundation or retaining wall |
| revetments | (esp. in fortification) A retaining wall or facing of masonry or other material, supporting or protecting a rampart, wall, etc |
