| Abbreviation | Definition |
|---|---|
| RIP | Raw In Process |
| RIPG | RIgoletto Palma Grande cigar |
| RIRB | Ribbon, Root Beer color |
| RISB | Reaction Innovations Sweet Beaver |
| RITB | Ram In Tie Bar |
| RL | Real Luxury |
| RL | Reduced Level |
| RLC | Rebound, Lockout, and Compression |
| RLD | Refrigerant Leak Detector |
| RLD | Rolled |
| RLH | Refractive Light Hybrid |
| RLI | Roto Level Indicator |
| RLP | Rescue Ladder Platform |
| RLT | Running Line Tensiometer |
| RLU | Replacement Lamp Unit |
| RLWI | Riserless Light Well Intervention |
| RM | Repressor Maintenance |
| RMB | Roadside Mail Box |
| RMC | Rainbow Multi-Coating |
| RMC | Ready Mix Cement |