| Kompensationshandel | countertrade |
| Kompensationsebene | compensation depth |
| Kombinationszange | combination pliers engineers pliers |
| Kompensation | compensation |
| Kommunikationsdaten | communication |
| Kombinationsfeld | combo box |
| Kommunikationsmodell | communication model |
| Kondensationsflasche | Leyden jar |
| Sensationsmache | sensationalism |
| Menschenhandel | human trafficking |
| Konzentrationslager | concentration camp |
| Operationssaal | operating room theatre operating theater operating theatre surgery theater |
| Kompassnadel | compass needle |
| Pensionsfonds | pension fund |
| Kugelstoßpendel | newton's cradle |
| Kondensation | condensation |
| Ionisationskammer | ionization chamber |
| kotranslational | cotranslational |
| Versandhandel | mail order |
| Kompensierung | compensation |