| Katastrophenalarm | red alert |
| Katastrophenfilm | disaster movie |
| Katastrophen- | catastrophic |
| katastrophal | disastrous |
| Katastrophe | catastrophe calamity disaster |
| Katastrophenschutz | civil protection disaster control emergency management |
| Katastrophenreaktion | catastrophic behavior catastrophic reaction |
| Eukatastrophe | eucatastrophe |
| Katappenbaum | Indian almond |
| Anastrophe | anastrophe |
| Katasteramt | cadastre |
| Kataster | land register cadastre |
| katotherm | katothermal |
| Kastenform | tin |
| Astrophyllit | astrophyllite |
| Astrophysiker | astrophysicist |
| Kastanienbaum | chestnut tree |
| Kurzstreckenlauf | sprint |
| Strohhalm | straw drinking straw |
| kalorienarm | low-calorie |