| dilute(thin, spoil, corrupt, degrade) |
| dissolve(thin, spoil, corrupt, degrade) |
| doctor(thin, spoil, corrupt, degrade) |
| doctor up(expression, thin, spoil, corrupt) |
| downsize(verb, check, reduce, decrease) |
| falsify(thin, spoil, corrupt, degrade) |
| infiltrate(thin, spoil, corrupt, degrade) |
| intermix(thin, spoil, corrupt, degrade) |
| irrigate(thin, spoil, corrupt, degrade) |
| lace(thin, spoil, corrupt, degrade) |
| make impure(expression, thin, spoil, corrupt) |
| mingle(thin, spoil, corrupt, degrade) |
| mix(thin, spoil, corrupt, degrade) |
| phony up(expression, thin, spoil, corrupt) |
| plant(thin, spoil, corrupt, degrade) |
| prune(verb, check, reduce, decrease) |
| spike(thin, spoil, corrupt, degrade) |
| thin(spoil, corrupt, degrade, taint) |
| tone down(verb, expression, check, reduce) |
| transfuse(thin, spoil, corrupt, degrade) |