| Installationsrohr | conduit |
| Installationskanal | conduit |
| Installationsprogramm | installer |
| Installation | installation installation art |
| Elektroinstallationsrohr | conduit |
| instationär | transient |
| Installateur | plumber |
| Ionisationsröhre | ionisation tube ionization tube |
| installieren | install |
| Integrationstest | integration testing |
| Konstellation | constellation |
| Spallation | spallation |
| Destillation | distillation |
| Inhalation | inhalation |
| Isolationshaft | solitary confinement |
| inflationär | inflationary |
| Initiationsritus | initiation ceremony |
| Insel Ascension | Ascension Island |
| Installer | installer |
| Institution | fixture institution |