| sap(verb, dull, decline, reduce, fail) |
| shave(cut, reduce, diminish, decrease, thin) |
| slacken |
| soften(verb, dull, decline, restrain, fail) |
| soil(hurt, damage, harm, dirty, corrupt) |
| sophisticate(verb, cut, alter, corrupt, adjust) |
| spoil(hurt, dirty, corrupt, stain, debase) |
| stigmatize(hurt, damage, harm, dirty, corrupt) |
| subdue(verb, restrain, curb, suppress, discipline) |
| subjugate(verb, restrain, curb, suppress, discipline) |
| subtilize |
| suppress(verb, restrain, curb, discipline, train) |
| taint(verb, cut, hurt, ruin, thin) |
| tame(verb, discipline, train, pacify, compliant) |
| thin out(verb, expression, decline, reduce, fail) |
| tire(verb, decline, reduce, fail, halt) |
| tone down(verb, expression, restrain, curb, suppress) |
| totter(verb, decline, reduce, fail, halt) |
| train(verb, restrain, curb, suppress, discipline) |
| transfuse(cut, thin, spoil, corrupt, degrade) |