| Introspektion | introspection |
| Introjektion | introjection |
| introspektiv | introspective |
| Retrospektion | feedback retrospection |
| Prospektion | prospecting archaeological field survey archaeological prospection archaeological surveying |
| Inspektion | inspection |
| Interjektion | interjection |
| Untersektion | subsection |
| Intinktion | intinction |
| Intrusion | intrusion |
| Intention | intention |
| Interaktion | interaction |
| Interception | interception |
| Interessentin | stakeholder |
| Interpunktion | punctuation |
| Interruption | interruption |
| Intervention | intervention |
| Inthronisation | enthronement |
| Intonation | intonation |
| Intoxikation | intoxication |