| komfortabel | comfortable |
| komparabel | comparable |
| Komfort | comfort |
| kompatibel | compatible |
| portabel | portable |
| Konnetabel | constable |
| Kupferkabel | copper cable |
| inkomparabel | uncomparable |
| Komoren | Comoros |
| Komorer | Comorian |
| komorbid | comorbid |
| Pfortader | portal vein |
| Doktortitel | doctor's degree doctoral level |
| Kohorte | cohort |
| Konsorte | consortium member |
| Mörtel | mortar |
| mutabel | mutable |
| profitabel | profitable |
| Koaxkabel | coaxial cable |
| Kolkrabe | common raven |