| Instrukteur | instructor |
| Instruktor | instructor |
| Konstrukteur | designer constructer constructor |
| Instruktiv | instructive |
| instruktiv | instructive |
| Struktur | structure |
| Installateur | plumber |
| Instrument | instrument |
| Konstruktor | constructor |
| Destruktor | destructor |
| Infrastruktur | infrastructure |
| Einstreu | litter |
| Installer | installer |
| instrumentell | instrumental |
| Inspektor | inspector |
| Instinkt | instinct |
| Institut | institute institution institution building legal institution |
| instinktiv | instinctive |
| instruieren | instruct |
| Anstecker | pin |