S
| Abbreviation | Meaning | Tamil Meaning | Category |
|---|---|---|---|
| S | Spiral (for Galaxies) | - | Atmospheric Research Center |
| S | Smile | - | Chemistry |
| S | Second | - | Organizations |
| S | Second (Astronomical Tables) | - | Organizations |
| S | Side | - | Organizations |
| S | Sta R | - | Organizations |
| S | Stere | - | Organizations |
| S | CHGSupercharge | - | Organizations |
| S | PRES Star Present | - | Organizations |
| S | TRKStar Tracker | - | Organizations |
| S | Smile | - | Sms Text Smileys and Emoticons |
| S | Smile | - | ISO Country Codes |
| S | Siemens - South - Sulfur | - | Astronomy |