| coherent | logical |
| competent | fit |
| contempt | disdain |
| deference | respect |
| denounce | condemn |
| deter | discourage |
| deviate | turn aside from established |
| discern | distinguish |
| discriminate | distinguish |
| disdain | despise |
| disparage | discredit |
| dispute | to call into question |
| distort | twist out of the true meaning |
| diverse | differing from one another |
| dogma | doctrine |