| Dianetik | dianetics |
| Dialektik | dialectic |
| Kinetik | kinetic kinetics chemical kinetics |
| Diäresis | diaeresis |
| Diabetes | diabetes |
| Diabetiker | diabetic |
| Diagnostik | diagnostics |
| Genetik | genetics |
| Phonetik | phonetics phonology |
| Didaktik | didactics |
| Dramatik | drama |
| Mantik | divination manticism |
| antik | ancient antique |
| Diabetiker- | diabetic |
| Diakonin | deaconess |
| Diapir | diapir |
| Diarchie | diarchy |
| Diazepam | diazepam |
| Diadem | diadem |
| Dialekt | dialect slang |