| Fiskus | treasury |
| Diskus | discus |
| Diskurs | discourse treatise debate discussion conversation talk |
| viskos | viscous |
| Askus | ascus |
| Kuskus | cuscus |
| Fokus | focus |
| Zirkus | circus |
| Fisch- | fishy |
| Fisten | fisting |
| fisten | fist-fuck |
| Fis-Dur | F-sharp major |
| Fis | F sharp |
| Fisch | fish Pisces |
| Fische | Pisces |
| Fisole | green bean |
| Fistel | fistula |
| Sufismus | sufism Sufism |
| Disko | discotheque |
| Biskuit | sponge cake |