| Kanonisation | canonization |
| Kanalisation | sewage system |
| Kolonisation | colonisation |
| Ionisation | ionization ionisation |
| Jarowisation | jarovization |
| Kannibalin | cannibal |
| Kandidatin | candidate |
| Kolonistin | colonist |
| Dekolonisation | decolonization decolonisation |
| Kolonisator | colonizer |
| Organisation | organization organisation |
| Memoisation | memoization |
| Autorisation | authorisation authorization |
| Faradisation | faradization faradisation faradism |
| Maderisation | maderisation |
| Kondensation | condensation |
| Kassation | cassation abrogation quashing reversal annulment military degradation |
| Konversation | conversation |
| Annotation | annotation |
| Konspiration | conspiracy |