| Abbreviation | Definition |
|---|---|
| RXI | Receiver Input |
| RXM | Risk and Exposure Management |
| RXO | Receiver Output |
| RXO | Regimental Executive Officer |
| RXQ | Quick Requisition |
| RXU | Receiver Unit |
| RXV | Receiver Video |
| RXW | Receiver Workbook |
| RYA | Risk Your A** |
| RYA | Risk Your Ass |
| RYE | Retirement Year Ending |
| RYK | Relay ( Military designation) |
| RZ | Recovery Zone |
| RZA | Royal Zenobian Army |
| RZB | Regulated Zone Boundary |
| RZC | Red Zone Cuba |
| RZD | Recurring Zero Demand |
| RZM | ReichZeugMeisterei |
| RZT | Radiation Zone Training |
| RZW | Radiation Zone Work |