| keimfrei | sterile |
| Keilerei | brawl |
| keifen | badger bicker complain jangle nag |
| keimen | germinate sprout pullulate |
| keinerlei | no…at all |
| fettfrei | fat-free |
| geistfrei | witless |
| bleifrei | unleaded lead-free non-lead |
| Kellerei | winery |
| Reiberei | friction |
| Reiterei | cavalry |
| Ketzerei | heresy |
| Keilstein | voussoir |
| keimfrei machen | sanitize |
| keine | neither |
| keines | neither |
| Keiler | boar tusker |
| Keim | seed sprout shoot germ |
| Keimdrüse | gonad sex gland |
| Keimung | germination |