| dell(noun, hollow, gorge, concavity, vale) |
| canyon(noun, hollow, gorge, gulf, vale) |
| dale(noun, dip, hollow, bottom, gorge) |
| dingle(noun, hollow, gorge, concavity, vale) |
| hollow(noun, area, line, depression, dish) |
| vale(noun, depression, hollow, gorge, concavity) |
| trough(noun, dip, hollow, bottom, gorge) |
| gorge(noun, cut, pass, hollow, vale) |
| bottom(noun, dip, hollow, gorge, concavity) |
| glen(noun, hollow, gorge, concavity, vale) |
| notch(noun, cut, flat, line, plain) |
| chasm(noun, nature, gorge, ravine, gully) |
| gulch(noun, gorge, ravine, gully) |
| pit(noun, nature, depression, impression, dip) |
| ravine(noun, gap, gorge, gully) |
| gap(noun, cut, pass, ravine) |
| basin(noun, area, flat, plain, depression) |
| depression(noun, cut, flat, line, plain) |
| gully(noun, gorge, concavity, ravine) |
| furrow(noun, line, channel, groove, trench) |