| Abbreviation | Definition |
|---|---|
| RV | Relative Value |
| RV | Requires Variable |
| RV | Return Value |
| RVA | Relative Virtual Address |
| RVQ | Receive Value_Request |
| RVQ | Register Value Queue |
| RW | Readable While |
| RW | Rewrite While |
| RWI | Read, Write, Initialize |
| RXR | Resource eXchange Register |
| RYLA | Rotary Youth Leadership Assembly |
| S | Save |
| S | Seek |
| S | Source |
| S | Stop |
| SA | Set Access |
| SA | Shift Amount |
| SA | Sort Address |
| SA | Starting Address |
| SAD | Systems Analysis and Design |