| Denkfabrik | think tank |
| Denkerin | thinker philosopher |
| denkbar | conceivable imaginable |
| denkfaul | mentally inert |
| Fabrik | factory plant |
| Dekabrist | Decembrist |
| Denali | Denali |
| Denkbild | notion |
| Denar | denarius denar |
| Dendrit | dendrite |
| Denker | thinker philosopher |
| Denkfehler | error in reasoning |
| Denkmal | monument |
| Denkschrift | memorandum |
| Denksport | puzzle |
| denkwürdig | memorable notable noteworthy |
| denotativ | denotative |
| Seifenfabrik | soap works |
| Traumfabrik | dream factory |
| Waffenfabrik | arms factory arms works |