| Abbreviation | Definition |
|---|---|
| SBNF | Small Business News Fire |
| SBY | Standby |
| SCA | Subsidiary Carrier Authorization |
| SCA | Supreme Council of Antiquities |
| SCAM | Sports Cyber-Arts Music |
| SCMP | South China Morning Post |
| SCNG | Southern California News Group |
| SDIM | S D Interactive Media |
| SDN | Savage Daily News |
| SDNS | Scottish Daily Newspaper Society |
| SDV | Switched Digital Video |
| SEC | Sector |
| SENS | Stock Exchange News Service |
| SERA | Super Extra Really Awesome |
| SFDN | San Francisco Daily News |
| SFFP | South Florida Free Press |
| SFLEP | Shanghai Foreign Language Education Press |
| SFPA | Student Free Press Association |
| SGMII | Serial Gigabit Media Independent Interface |
| SGN | Seattle Gay News |