| Term | Definition |
| disparate | different, incompatible, unequal |
| parity | equality |
| disparity | a difference, lack of similarity or equality |
| disseminate | to spread the seeds of something, to scatter, to make widely known |
| dissipate | to thin out, drift away, dissolve, to cause to dissolve, to squander |
| dissipated | indulging in wild living |
| dissolution | the breaking up or dissolving of something into parts |
| dissolute | lacking moral restraint |
| distend | to swell, to extend a great deal |
| distinguish | to tell apart, to cause to stand out |
| docile | easily taught, obedient, easy to handle |
| doctrinaire | inflexibly committed to a doctrine or theory without regard for its practicality |
| dogmatic | arrogantly assertive of unproven ideas, stubbornly claiming that something is beyond dispute |
| dogma | a belief |
| domestic | having to do with the household and family, not foreign |