| Interrogativsatz | interrogative sentence |
| Interaktivität | interactivity |
| Internationale | Internationale |
| Interpolation | interpolation |
| international | international |
| intervokalisch | intervocalic |
| Unterabsatz | subparagraph |
| Deklarativsatz | declarative sentence |
| Komparativsatz | clause of comparison |
| Relativsatz | relative clause |
| Infinitivsatz | infinitive clause |
| Interruptio | abortive |
| Interslavisch | Interslavic |
| Interslawisch | Interslavic |
| interrassisch | interracial |
| interventiv | interventive intervention |
| Integration | integration |
| Integrität | integrity |
| Interglazial | interglacial interglacial episode interglacial interval |
| interglazial | interglacial |