| Nukleotid | nucleotide |
| Nukleosom | nucleosome |
| Nuklid | nuclide |
| Nukleon | nucleon |
| nukleophil | nucleophilic |
| Nuklease | nuclease |
| Ribonukleotid | ribonucleotide |
| Nukleus | (cell) nucleus cytoblast nucleus |
| nuklear | nuclear |
| Küklein | chick |
| Euklid | Euclid |
| Kleid | dress clothes |
| Nikotin | nicotine |
| Bauklotz | building brick |
| Ankleide | closet |
| Etuikleid | sheath |
| klebend | adherent |
| Klei | clay soil heavy soil |
| Kleie | bran |
| Kleinod | jewel |