| Invasion | invasion |
| Inversion | anastrophe |
| invasiv | invasive |
| Infusion | infusion |
| Invention | invention |
| Invalide | invalid |
| Investor | investor |
| invariant | invariant |
| Abrasion | abrasion |
| Adhäsion | adhesion |
| Kohäsion | cohesion |
| Läsion | lesion |
| Intrusion | intrusion |
| Division | division |
| Illusion | illusion |
| Inklusion | inclusion |
| Intension | tenseness |
| Revision | check change revision appeal audit |
| Vision | vision |
| Ingestion | ingestion |