| Kosovare | Kosovan |
| Kosovarin | Kosovan |
| Kosename | pet name term of endearment |
| Kosovo | Kosovo |
| kostbar | precious valuable |
| Isobare | isobar |
| Kosekans | cosecant |
| Kosak | Cossack |
| Koseform | affectionate form familiar form |
| Kosewort | term of endearment |
| Kosmologe | cosmologist |
| Kosmonaut | cosmonaut |
| Kosrae | Kosrae Kusaie |
| Kostenart | cost element |
| koscher | kosher kasher |
| kosovarisch | Kosovan |
| Gyrovage | gyrovague |
| Novara | Novara |
| Ovar | ovary |
| Bojare | boyar |