| Interludium | interlude |
| Internodium | internode internodal segment |
| Interregnum | interregnum |
| Interdikt | interdict |
| Interim | interim meantime arrangement solution temporary |
| Interlingua | Interlingua |
| Interlingue | Interlingue |
| intermediär | intermediate intermediary |
| Untriunium | untriunium |
| Hinterdarm | proctodeum |
| Hinterlader | breechloader |
| Hinterlauf | hind leg |
| Hinterlist | skulduggery |
| Hinterraum | snug |
| Interaktom | interactome |
| Intercity | express train |
| Interlaken | Interlaken |
| Interruptio | abortive |
| Intrusion | intrusion |
| intrusiv | intrusive |