| investigativ | investigative |
| Investigation | investigation |
| investierte | funded |
| Investition | investment |
| instinktiv | instinctive |
| inspirativ | inspiring |
| invertiert | inverted |
| investieren | invest |
| investigieren | investigate |
| Infestation | infestation |
| intestinal | intestinal enteral |
| Negativ | negative |
| negativ | negative |
| indikativ | indicative |
| Indikativ | indicative mode |
| Initiative | initiative |
| Instruktiv | instructive |
| instruktiv | instructive |
| Invention | invention |
| Invertebrat | invertebrate |