| kooperieren | co-operate |
| kooptieren | co-opt coopt |
| operieren | operate |
| konferieren | confer |
| komparieren | compare |
| prosperieren | prosper |
| föderieren | federate |
| moderieren | emcee |
| offerieren | offer |
| tolerieren | tolerate allow accept |
| kontrieren | double |
| kolorieren | color colorize colour |
| konsekrieren | devote |
| konspirieren | conspire |
| konturieren | outline |
| Kopieren | replication |
| kopieren | copy |
| kolportieren | spread hawk |
| kompensieren | compensate |
| kompilieren | compile |