| bidirektional | bidirectional |
| direktional | directional |
| Direktion | administration department |
| Bijektion | bijection |
| Vivisektion | vivisection |
| Diktionär | dictionary |
| fiktional | fictional |
| additional | additional |
| diskretionär | discretionary |
| intentional | intentional |
| irrational | irrational |
| n-dimensional | n-dimensional |
| dimensional | dimensional |
| eindimensional | one-dimensional |
| dreidimensional | three-dimensional |
| zweidimensional | two-dimensional |
| Direktive | directive |
| Direktor | manager director headmaster principal senior vice president |
| Direktorin | headmistress director manager |
| direktiv | directive |