| Katastrophe | catastrophe calamity disaster |
| Katastrophen- | catastrophic |
| Eukatastrophe | eucatastrophe |
| Katastrophenfilm | disaster movie |
| katastrophal | disastrous |
| Anastrophe | anastrophe |
| Katastrophenalarm | red alert |
| Flutkatastrophe | flood disaster |
| Katastrophenschutz | civil protection disaster control emergency management |
| Katatonie | catatonia |
| Apostroph | apostrophe |
| Strophe | stanza stave |
| Katasteramt | cadastre |
| Kathstrauch | khat |
| Katachrese | catachresis |
| Katakombe | catacomb |
| Katarrh | catarrh |
| Kataster | land register cadastre |
| Klimakatastrophe | climate disaster |
| Naturkatastrophe | natural disaster |