| Instruktor | instructor |
| Instruktiv | instructive |
| instruktiv | instructive |
| Instrukteur | instructor |
| Konstruktor | constructor |
| Destruktor | destructor |
| Inspektor | inspector |
| Distraktor | distracter |
| Struktur | structure |
| Induktor | inductor |
| Inspirator | inspirer |
| Instinkt | instinct |
| Instrument | instrument |
| instinktiv | instinctive |
| Konstrukteur | designer constructer constructor |
| Konstruktion | construction |
| konstruktiv | design constructive |
| Infrastruktur | infrastructure |
| Obstruktion | obstruction |
| destruktiv | destructive |