| Kornnatter | corn snake |
| Kornkammer | food bowl breadbasket |
| knatter | high |
| NOR-Gatter | NOR gate |
| XOR-Gatter | XOR gate |
| Korbmacher | basketmaker |
| Korinthe | currant |
| Koreaner | Korean |
| Koriander | coriander |
| Kornett | cornet |
| Kornrade | corncockle |
| Korvette | corvette |
| koronar | coronary |
| Tornister | knapsack satchel |
| konnatal | connatal |
| Granatier | grenadier |
| Natter | adder colubrid |
| knattern | crackle flap put-put rat-a-tat-tat |
| Kohlblätter | collard greens |
| Krattler | good-for-nothing hobo |