| Abbreviation | Definition |
|---|---|
| SMRT | Silencing Mediator for Retinoid and Thyroid |
| SMSG | Social Media Screen Grab |
| SMSG | Social Media Screen Grabs |
| SMT | Satellite Media Tour |
| SMU | Special Make Up |
| SMW | Swiss Medical Weekly |
| SMWA | Student Media Watchdog Association |
| SMWG | Social Media Working Group |
| SN | Suncoast News |
| SNA | Subject Not Available |
| SNAP | Saturday Night Alternative Programming |
| SNAP | Stylus Not A Pen |
| SND | Saturday Night Dead |
| SND | Sound |
| SNDN | Silent Night Deadly Night |
| SNF | Saturday Night Fever |
| SNG | Satellite News Gathering |
| SNG | Satellite No Good |
| SNIE | Sun News In Education |
| SNL | Saturday Night Live |