| doctor(verb, reduce, thin, spoil) |
| dilute(verb, reduce, thin, spoil) |
| contaminate(thin, spoil, corrupt, degrade) |
| corrupt(thin, spoil, degrade, taint) |
| denature(thin, spoil, corrupt, degrade) |
| falsify(verb, change, ruin, obscure) |
| lace(reduce, thin, spoil, alter) |
| pollute(thin, spoil, corrupt, degrade) |
| spike(reduce, thin, spoil, alter) |
| alloy(thin, spoil, corrupt, degrade) |
| amalgamate(thin, spoil, corrupt, degrade) |
| attenuate(reduce, thin, spoil, alter) |
| blend(thin, spoil, corrupt, degrade) |
| cheapen(thin, spoil, corrupt, degrade) |
| commingle(thin, spoil, corrupt, degrade) |
| cook(reduce, thin, spoil, alter) |
| defile(thin, spoil, corrupt, degrade) |
| degrade(thin, spoil, corrupt, taint) |
| depreciate(thin, spoil, corrupt, degrade) |
| deteriorate(thin, spoil, corrupt, degrade) |