| rekurrent | recurrent |
| Rekurrenz | recurrence |
| Konkurrent | competitor |
| Referent | speaker |
| Reduzent | decomposer |
| Rekorder | recorder |
| Rekordernte | bumper crop |
| Rekrut | recruit |
| Rektorin | headmistress |
| Rekursion | recursion |
| inkorrekt | incorrect |
| korrekt | correct |
| rekurrieren | refer back return appeal |
| rekursiv | recursive |
| Sekundant | second |
| gekürzt | abridged |
| bekunden | testify express state show |
| Kurre | turkey |
| Kürzen | abbreviation |
| kürzen | shorten reduce simplify |