| Katasteramt | cadastre |
| Kataster | land register cadastre |
| Kattegatt | Kattegat |
| Kataphrakt | cataphract |
| Katarakt | cataract |
| Kattegat | Kattegat |
| Kastrat | castrato |
| Apostelamt | apostleship |
| Priesteramt | priesthood |
| Kanzleramt | chancellery chancellory chancellorship |
| Katarerin | Qatari |
| Kathstrauch | khat |
| Katamaran | catamaran |
| Kataphora | cataphora |
| Katarer | Qatari |
| Katastrophe | catastrophe calamity disaster |
| Katheter | catheter |
| katathym | katathym |
| katotherm | katothermal |
| Dataset | data set |