| ruck, zuck | in a jiffy |
| ruckzuck | at the double in a jiffy lickety-split on the double |
| Rucksack | backpack rucksack knapsack haversack |
| Rückblick | retrospective review |
| Rückzug | retreat |
| rückzu | back way |
| Kuckuck | cuckoo |
| kuckuck | cuckoo |
| Muckefuck | coffee substitute |
| Druckstock | plate |
| Rückstau | backlog |
| Rückwurf | throwback |
| Bruchstück | fragment piece |
| Buchdruck | letterpress |
| Druckanzug | pressure suit |
| Krückstock | walking stick |
| Rechtsruck | shift to the right swing to the right |
| Rückenmark | spinal cord |
| Rücklauf | return response |
| Rückruf | recall callback |