| Sukun | sukun |
| Sukka | sukkah succah |
| Skunk | skunk |
| Zukunft | future futurity future tense |
| Gokkun | gokkun |
| Kuna | kuna |
| Zuckung | jerk |
| Lakune | lacuna gap |
| Sekunde | second |
| Senkung | reduction descent prolapse prolapsus |
| fekund | fecund |
| Sukkade | succade |
| Sukkubus | succubus |
| sukkulent | succulent |
| Busuki | bouzouki |
| Sukkoth | Succoth Sukkot Sukkoth succos succot succoth |
| Aruküla | Aruküla |
| Kukuruz | maize |
| Seppuku | seppuku |
| lukulent | clear |