| kaptivieren | capture |
| kaprizieren | insist on set one's heart on something |
| Aktivieren | activation |
| aktivieren | activate |
| kultivieren | cultivate grow |
| kapieren | twig get |
| kapitulieren | capitulate |
| optimieren | optimize |
| reaktivieren | rehabilitate |
| deaktivieren | deactivate disable |
| motivieren | motivate give reasons |
| arrivieren | advance |
| avivieren | soften |
| passivieren | passivate |
| kalzinieren | calcine |
| kastrieren | fix castrate |
| kandidieren | be a candidate contest run for |
| karikieren | caricature cartoon |
| kritisieren | criticize |
| mastizieren | masticate |