| Kopiar | cartulary |
| Kopist | copyist |
| Kopra | copra |
| Kopie | copy duplicate blueprint manifold replica replication print reprint |
| Köper | twill |
| Opiat | opiate |
| Kaviar | caviar |
| Kopieren | replication |
| kopieren | copy |
| Koppler | coupling |
| Kopte | Copt |
| Koptin | Copt |
| kopfig | cerebral |
| Kopeke | copeck kopeck |
| Kopf | head header heads |
| Kopierer | photocopier copier |
| Kopilot | co-pilot copilot |
| Koppel | paddock coupler belt |
| Kopula | copula |
| koppen | climb belch |