| invariant | invariant |
| Invariante | invariant |
| Invasion | invasion |
| Variante | variant |
| Varianz | variance difference |
| Informant | ear informant |
| intrigant | conniving |
| Intrigant | intriguer |
| Inversion | anastrophe |
| Invalide | invalid |
| invasiv | invasive |
| invertiert | inverted |
| zeitinvariant | time-invariant |
| Kovariate | covariate |
| Varia | trivia |
| Havarist | disabled vessel |
| ovarial | ovarian |
| Inarisee | Lake Inari Lake Inarijärvi |
| Notariat | notaryship notary's office |
| Sindarin | Sindarin |