| Inkreis | incircle |
| Senkreis | cutting |
| Kreis | circle district |
| Umkreis | surroundings circumcircle |
| Inkreisradius | apothem |
| Inkubus | incubus |
| einkreisen | circle |
| Hirnkrebs | brain cancer |
| Feenkreis | fairy circle fairy ring |
| Kornkreis | crop circle |
| Pankreas | pancreas salivary gland of the abdomen |
| Krebs | crayfish crab cancer Cancer |
| Landkreis | county |
| Tierkreis | zodiac |
| Eierreis | fried rice |
| Imkerei | beekeeping |
| Wildreis | wild rice |
| unrein | unclean |
| Anreise | journey |
| Anreiz | incentive |