| Interaktom | interactome |
| Interaktion | interaction |
| interaktiv | interactive |
| Iterator | iterator |
| Hinterarm | upper arm |
| Hintertor | postern |
| Intercity | express train |
| Interferon | interferon |
| Interlaken | Interlaken |
| Integration | integration |
| Interdikt | interdict |
| Interim | interim meantime arrangement solution temporary |
| Interjektion | interjection |
| Internat | boarding school |
| Internet | Internet Net |
| intakt | intact |
| Unterton | subharmonic |
| Unterarm | forearm |
| Unterart | subspecies |
| Heteroatom | heteroatom |