| Katzoff | slaughterer |
| Kailoff | pooch |
| Kathole | papist |
| Katoey | kathoey |
| Katzerl | kitten |
| Kätzli | kitten |
| Kathode | cathode |
| Kation | cation |
| Katze | cat she-cat feline |
| Kätzin | she-cat |
| Zoff | trouble |
| Stoff | substance material fabric cloth matter subject stuff |
| toff | good well-dressed |
| Katanga | Katanga |
| Katarr | catarrh |
| Katholin | papist |
| Katium | Katian |
| Katja | Katya |
| Kattun | calico |
| Katzenkopf | cobblestone |