| Abbreviation | Definition |
|---|---|
| SOD | Seconds Of Day |
| SOW | Sips Of Water |
| SPA | Samples Per Average |
| SPC | Samples Per Cycle |
| SPH | Sales Per Hour |
| SPI | Samples Per Inch |
| SPIF | State Plane International Foot |
| SPM | Sheets Per Minute |
| SPM | Shots Per Minute |
| SPM | Syllables Per Minute |
| SPP | Seconds Per Page |
| SPS | Shots Per Second |
| SQ | SQuare |
| SQB | Square Batch |
| SQF | SQuare Foot |
| SQFT | Square Foot |
| SQH | Square Hectare |
| SQIN | Square Inch |
| SQM | SQuare Meter |
| SQR | Square |