| dedicarsi | devote oneself |
| dedicarsi a | devote oneself to |
| dedicato | devoted |
| dedifferenziazione | dedifferentiation |
| dedito | dedicated |
| dedito al bere | addicted |
| dedizione | dedication |
| deducibile | deductible |
| dedurre | deduct |
| deduttivo | deductive |
| deduzione | deduction |
| Dee Dee Bridgewater | Dee Dee Bridgewater |
| Dee Dee Ramone | Dee Dee Ramone |
| Dee Palmer | Dee Palmer |
| Deeds of Flesh | Deeds of Flesh |
| Deep Impact | Deep Impact |
| Deep linking | Deep linking |
| Deep Purple | Deep Purple |
| Deep Purple in Rock | Deep Purple in Rock |
| Deep Shadows And Brilliant Highlights | Deep Shadows and Brilliant Highlights |
| Deep Space Network | Deep Space Network |
| Deep Space Nine | Deep Space Nine |
| Deep Submergence Rescue Vehicle | Deep Submergence Rescue Vehicle |
| Deer Isle | Deer Isle |
| Def Jam Recordings | Def Jam Recordings |
| Def Leppard | Def Leppard |
| Defalcamento | Subtraction |
| defalcare | deduct |
| default | default |
| DEFCON | DEFCON |
| defecare | refine |
| defecazione | defecation |
| defecography | defecography |
| defenestrare | defenestrate |
| defenestrazione | defenestration |
| Defenestrazione di Praga | Defenestrations of Prague |
| Defense Advanced Research Projects Agency | DARPA |
| Defense Intelligence Agency | Defense Intelligence Agency |
| Defense of the Ancients | Defense of the Ancients |
| Defensive line | American football positions |
| Defensores del Chaco | Estadio Defensores del Chaco |
| deferente | deferential |
| deferenza | respect |
| deferenziale | deferential |
| deferimento | deferment |
| deferire | report |
| defezionare | defect |
| defezione | defection |
| Defibrillatore semi-automatico | Automated external defibrillator |
| Defibrillatore semiautomatico | Automated external defibrillator |
| deficenza | moronic |
| deficiente | simple |
| deficiente mentale | mentally deficient |
| deficienza | deficiency |
| deficit | deficit |
