| bowl(noun, area, vessel, depression, dish) |
| dip(noun, drop, area, decline, fall) |
| hollow(noun, drop, area, decline, fall) |
| depression(noun, drop, area, decline, fall) |
| valley(noun, area, flat, plain, depression) |
| hole(noun, drop, area, decline, fall) |
| cavity(noun, area, impression, space, dip) |
| concavity(noun, drop, area, decline, fall) |
| crater(noun, depression, impression, space, dip) |
| pit(noun, depression, impression, space, dip) |
| sinkhole(noun, drop, area, decline, fall) |
| sinkage(noun, drop, area, decline, fall) |
| socket(noun, space, hole, hollow, pocket) |
| dimple(noun, depression, impression, dip, hollow) |
| dish(noun, vessel, container, hollow, pot) |
| gulf(noun, area, sound, dish, sink) |
| indentation(noun, depression, impression, dip, hollow) |
| pocket(noun, depression, impression, space, dip) |
| scoop(noun, depression, impression, dip, hollow) |
| excavation(noun, depression, impression, dip, hollow) |