| Interaktion | interaction |
| Interaktom | interactome |
| Integration | integration |
| Interjektion | interjection |
| interaktiv | interactive |
| Iteration | iteration |
| Intinktion | intinction |
| Intention | intention |
| Interception | interception |
| Interpunktion | punctuation |
| Interruption | interruption |
| Intervention | intervention |
| Intonation | intonation |
| Intubation | intubation |
| Untersektion | subsection |
| Attraktion | attraction |
| Extraktion | extraction |
| Kontraktion | contraction |
| Traktion | traction |
| Infektion | infection |