| Kosovo | Kosovo |
| Kosel | pig |
| Kokos | coconut coco |
| Kokosöl | coconut oil |
| Kosak | Cossack |
| Kosmos | cosmos |
| Kosovare | Kosovan |
| Kosrae | Kosrae Kusaie |
| Kost | diet fare meal |
| Kosten | cost charges expenses fees damage |
| kosten | cost take get a taste of taste try enjoy |
| Kostüm | suit costume fancy dress |
| kosen | cherish |
| soso | so-so |
| Boson | boson |
| Provo | Provo |
| Kosmodrom | cosmodrome |
| Koseform | affectionate form familiar form |
| Kosewort | term of endearment |
| Kosinus | cosine |