| droop(verb, stop, drop, end) |
| fall(verb, stop, drop, end) |
| slump(verb, drop, change, decline) |
| vitiate(verb, decline, hurt, reduce) |
| waste(verb, break, drop, strong) |
| fall off(verb, expression, phrasal verb, drop) |
| peter out(verb, expression, stop, drop, end) |
| corrupt(verb, decline, hurt, reduce) |
| lower(verb, drop, decline, reduce) |
| subside(verb, stop, drop, end) |
| contract(verb, drop, quiet, decline) |
| defile(verb, decline, hurt, ruin) |
| shrivel(verb, drop, decline, reduce) |
| slacken(verb, stop, drop, decline) |
| adulterate(verb, decline, ruin, fail) |
| contaminate(hurt, thin, spoil, corrupt) |
| pollute(verb, decline, hurt, ruin) |
| reduce(verb, drop, decline, destroy) |
| shrink(verb, drop, decline, reduce) |
| taint(verb, hurt, ruin, thin) |