| Kohlegrube | mine |
| Kohlrübe | rutabaga swede neep yellow turnip Swedish turnip Russian turnip German turnip kohlrabi turnip cabbage block bonce chump noddle noggin noodle |
| Güllegrube | cesspool |
| Goldgrube | gold mine |
| Kohlensäure | carbonic acid |
| Kohlrabi | kohlrabi German turnip |
| Köhler | collier charburner charcoal burner pollock |
| Hohltaube | stock dove |
| Kollege | colleague workmate co-worker |
| Kollegium | collegium |
| Fallgrube | pitfall |
| Fördergrube | field |
| Klärgrube | septic tank |
| Müllgrube | midden |
| Odelgrube | cesspool |
| Wildgrube | pitfall |
| Kiesgrube | gravel pit gravel quarry |
| Mohrrübe | carrot |
| Kohlechemie | carbochemistry |
| Kohlefaser | carbon fiber |