| Kolumbarium | columbarium |
| Columbarium | columbarium |
| Columbium | columbium |
| Kolubrine | culverin |
| Kolumbide | pigeon |
| Kolumbus | Columbus |
| Kolabaum | kola kola nut tree |
| Kollyrium | collyrium |
| Kolumbien | Colombia |
| Solarium | sunbed tanning bed |
| Kambrium | Cambrian |
| Kollumkarzinom | cervical cancer |
| Kolluvium | colluvium |
| Kolibri | hummingbird |
| Kollegium | collegium |
| Kollodium | collodion |
| Kolloquium | colloquium examination symposium test |
| Kolophonium | rosin colophony resin |
| Kolostrum | colostrum beestings foremilk |
| Kolumbianer | Colombian |