| Konvaleszenz | convalescence |
| Rekonvaleszenz | convalescence |
| Koaleszenz | coalescence |
| Rekonvaleszent | convalescent |
| rekonvaleszent | convalescent |
| Konkupiszenz | concupiscence |
| Konvergenz | convergence |
| Koaleszer | coalescer |
| Obsoleszenz | obsolescence |
| Rekonvaleszentin | convalescent |
| Kondolenz | condolence |
| Konferenz | conference |
| Kongolese | Congolese |
| Kongolesin | Congolese |
| Konsequenz | consequence |
| Konsistenz | consistency |
| Konvulsion | convulsion |
| konvenient | convenient |
| konvergent | convergent |
| kovalent | covalent |