| Abbreviation | Definition |
|---|---|
| RYS | Resurrected Yoga Slaughterers |
| RYS | Rochester Youth Soccer |
| RZC | Ron Zalko Class ( Dance) |
| RZV | Recreatie ZaalVoetbal |
| S | Safe |
| S | Safety |
| S | Saved |
| S | Scrimmage |
| S | Serve |
| S | Serving |
| S | Slant |
| S | Spoiler |
| S | Sport |
| S | Strike |
| S | Substitution |
| SA | Sets Against |
| SA | Swimming Ascent |
| SAA | The Sub Aqua Association |
| SABC | Sterling Athletic Booster Club |
| SABER | Sweeney Automobile Building Engineered Racing |