| infantil | infantile |
| Infantilität | childishness |
| Infant | infante |
| Infantilismus | infantilism |
| infertil | infertile |
| Infamie | infamy |
| Infanterie | infantry |
| Infantizid | infanticide |
| Infinitiv | infinitive |
| einfältig | simple naive |
| Quantil | quantile |
| Informantin | informant |
| einfarbig | monochrome |
| infantilisieren | infantilize |
| infektiös | infectious |
| Einfall | idea incidence invasion raid |
| Einfalt | naivete |
| Infanterist | foot soldier footman infantryman |
| Infarkt | infarction |
| Infekt | infection |