| Konditorei | confectionery pastry shop |
| Konditor | confectioner |
| Konditorin | pastry chef |
| Konfitüre | jam confiture |
| Konditorcreme | confectioner's cream |
| Kontor | office |
| kontextfrei | context-free |
| Konautor | coauthor |
| Kondition | condition |
| Konditional | conditional conditional mood |
| Kondor | condor |
| Konifere | conifer conifers |
| Konterfei | portrait |
| sondieren | probe sound |
| Kandidose | candidiasis |
| Kanditen | candied fruit |
| kandieren | candy crystallise |
| Kreditor | creditor |
| Monitor | monitor |
| Kinderei | childishness |