| Grübeln | musing |
| grübeln | brood |
| grübelnd | musing |
| gruseln | horripilate |
| Grummeln | grumble |
| grummeln | grumble |
| Grübelei | musing |
| Grünen | Greens |
| grünen | green turn green |
| Grube | pit mine grave septic tank |
| Ruben | Reuben |
| verübeln | resent |
| Rubel | rouble rubl |
| Trubel | hurly-burly |
| drüben | on the other side over there |
| rubbeln | rub |
| trüben | murky muddy impair |
| umrubeln | change money |
| doubeln | double |
| kübeln | puke |