| Columbium | columbium |
| Columbarium | columbarium |
| Columbia | Columbia |
| Columbus | Columbus |
| Kolumbide | pigeon |
| Kolumbus | Columbus |
| Kolumbarium | columbarium |
| Kolumbien | Colombia |
| Holmium | holmium |
| Colombo | Colombo |
| Kolumnist | columnist |
| Aluminium | aluminium aluminum |
| Kambium | cambium |
| Klimbim | garbage noise |
| Ununbium | ununbium |
| Callovium | Callovian |
| Coniacium | Coniacian |
| Drumium | Drumian |
| Kolluvium | colluvium |
| Pollinium | pollinium |