| Kolosseum | Colosseum |
| Kolosser | Colossian Colossians |
| Kolostrum | colostrum beestings foremilk |
| Koloss | colossus |
| kolossal | colossal huge |
| Molossus | molossus |
| Glossem | glosseme |
| Opossum | opossum possum opossum fur |
| Klassem | classeme |
| Kolluvium | colluvium |
| Kolonel | minion |
| Kolorismus | colorism |
| Kolabaum | kola kola nut tree |
| Kollegium | collegium |
| Kollodium | collodion |
| Kolloquium | colloquium examination symposium test |
| Kollyrium | collyrium |
| Kolonie | colony |
| Kolonne | convoy fractionating column |
| Koloratur | coloratura |