| Rancor | resentment; animosity; bad feeling |
| Rant | use bombastic language |
| Ratify | approve; consent |
| Raucous | rough and unpleasant (of sounds) |
| Raze | destroy; demolish; tear down |
| Rebuttal | denial |
| Recant | disclaim; retract statement |
| Recapitulate | summarize |
| Receptacle | container; vessel; holder |
| Recluse | someone who cuts himself off from life |
| Recuperate | get better after illness |
| Red tape | formalities; paperwork; official procedure |
| Redolent | smelling of; giving off odors |
| Redress | put right something that was wrong |
| Redundant | unnecessary; superfluous |
| Referendum | public vote |
| Refute | disprove |
| Regale | entertain |
| Relegate | dismiss to a lower position |
| Remorse | regret; sorrow; contrition |
