| languish(verb, drop, take, fall, fail) |
| wither(verb, bow, shrivel, droop, wilt) |
| bag(verb, adjective, drop, swell, expand) |
| basin(noun, drop, area, decline, fall) |
| cave in(verb, expression, phrasal verb, stop, break) |
| fade(verb, drop, decline, fall, fail) |
| hollow(noun, drop, area, decline, fall) |
| loll(verb, hold, drop, cover, stick) |
| nod(noun, verb, twist, bend, bow) |
| sinkhole(noun, drop, decline, fall, depression) |
| slouch(noun, verb, lie, bend, bow) |
| subside(verb, drop, decline, drive, release) |
| wane(noun, verb, drop, fall, fail) |
| arch(verb, distort, curve, deform) |
| concavity(noun, drop, decline, fall, sink) |
| decrease(noun, verb, drop, decline, release) |
| depression(noun, drop, decline, fall, position) |
| diminish(verb, drop, release, fall, fail) |
| downturn(noun, drop, decline, fall, position) |
| drop off(verb, expression, phrasal verb, drop, decline) |