| Infantizid | infanticide |
| Infanterie | infantry |
| infantil | infantile |
| Insektizid | insecticide |
| Infant | infante |
| Infanterist | foot soldier footman infantryman |
| Infantilität | childishness |
| Infinitiv | infinitive |
| Mentizid | brain-washing |
| Fungizid | fungicide |
| infektiös | infectious |
| Infamie | infamy |
| Infantilismus | infantilism |
| Infektion | infection |
| Infinität | uncertainty |
| Inflation | inflation |
| einfältig | simple naive |
| infertil | infertile |
| Anfangszeit | childhood |
| Anfängerin | beginner |