| instruieren | instruct |
| inserieren | advertise |
| insinuieren | insinuate |
| instituieren | institute |
| konstruieren | design make fabricate construct |
| menstruieren | menstruate |
| destruieren | destroy |
| obstruieren | obstruct |
| einsortieren | file |
| insistieren | insist |
| inskribieren | register |
| inspirieren | inspire |
| inspizieren | inspect check examine |
| installieren | install |
| inszenieren | stage |
| anstieren | stare |
| kastrieren | fix castrate |
| Nitrieren | nitriding |
| nitrieren | nitrate nitrify nitride |
| informieren | inform let know |