| Interferometer | interferometer |
| Interferometrie | interferometry |
| interferieren | interfere |
| Interferon | interferon |
| interferometrisch | interferometric |
| Interferenz | interference |
| Erntefestmeter | cubic meter of timber harvested |
| untervermieten | sublease sublet |
| Aberrometer | aberrometer |
| Internierte | internee |
| Interpretin | performer |
| Hinterfront | back |
| Internetnutzer | internaut |
| Internetprovider | ISP |
| Internetseite | Web site |
| Internetsurfer | internaut |
| Interpret | interpreter |
| Interserie | Interserie |
| Intersexueller | intersexual |
| Interviewer | interviewer |