| Rückfall | relapse recidivism |
| Rückprall | rebound |
| Rückhalt | backing support |
| Rückgeld | change |
| Rücklage | provision |
| ruckeln | jolt |
| Rucksack | backpack rucksack knapsack haversack |
| Rückfrage | query |
| Rückgabe | return |
| Rückgang | fall decrease decline drop |
| Rücklauf | return response |
| Duckface | duckface |
| Glücksfall | fluke stroke of luck |
| Ausfall | loss defect failure default sortie foray diatribe result |
| Durchfall | diarrhea diarrhoea failure flop |
| Reinfall | flop |
| Unfall | accident casualty |
| Zufall | coincidence chance accident case fortuity |
| Neckball | pickle |
| Trackball | trackball |