| shrivel(verb, drop, cut, decline, reduce) |
| sicken(verb, decline, weaken, lessen, degenerate) |
| slack off(verb, expression, phrasal verb, drop, cut) |
| slacken(verb, stop, drop, cut, decline) |
| slash(verb, drop, quiet, cut, decline) |
| slump(verb, drop, cut, decline, reduce) |
| soften(verb, drop, quiet, cut, decline) |
| split(harm, spoil, injure) |
| spoil(verb, break, decline, hurt, ruin) |
| suppurate(verb, decline, weaken, lessen, degenerate) |
| tatter(wear, shred, unravel, sickle, scissored) |
| turn(verb, decline, weaken, lessen, degenerate) |
| undermine(verb, break, decline, hurt, ruin) |
| use up(verb, expression, reduce, consume, burn) |
| vanish(verb, stop, end, pass, fall) |
| wear thin(verb, expression, rub, grind, wear) |
| weather(verb, rub, grind, fray, erode) |
| wilt(verb, stop, end, pass, fall) |
| wither(verb, stop, drop, end, cut) |
| ablate |