| Kolbenhirse | foxtail millet |
| Kolbenente | red-crested pochard |
| Borstenhirse | foxtail |
| Rispenhirse | proso millet |
| Rutenhirse | switchgrass |
| Kolbenmotor | piston engine |
| Kolchis | Colchis |
| Kolonist | colonist |
| Kolben | club mace piston butt spadix flask |
| Kolbenfresser | motor seizure piston seizure |
| Kolonie | colony |
| Kolumnist | columnist |
| silbenweise | syllabic |
| Ochsenhirte | oxherd |
| Seelenhirte | clergyman |
| Ziegenhirte | goatherd |
| Kleinhirn | cerebellum |
| Fingerhirse | crabgrass |
| Kolektomie | colectomy |
| Kollektivist | collectivist |