| koffeinhaltig | caffeinated |
| kleiehaltig | wholemeal |
| koffeinfrei | decaffeinated |
| offenkettig | open-chain |
| offenherzig | frank candid open revealing |
| einfältig | simple naive |
| platinhaltig | platiniferous |
| nikotinhaltig | containing nicotine nicotinic |
| kieselhaltig | siliceous |
| bleihaltig | containing lead |
| kalihaltig | potassic |
| kiefernartig | pinelike |
| Koffein | caffeine |
| Kofferkuli | baggage cart |
| Kofferradio | transistor |
| Offenheit | candor |
| Offenbarung | revelation Apocalypse Revelation Revelations |
| offenkundig | apparent |
| kaffeefarbig | coffee |
| Affenkäfig | monkey cage |