All abbreviations starting with S
| Term | Full Form | Category |
|---|---|---|
| S | Modula-3 Foreign assembly Source file 
| Others |
| S | S***
| Others |
| S | Safa
| Others |
| S | Safe
| Others |
| S | Safety
| Others |
| S | Sagans (Billions and Billions)
| Others |
| S | Sal
| Others |
| S | Salzburg
| Others |
| S | Sam
| Others |
| S | Samaritan
| Others |
| S | San Francisco, California (mint mark on United States coins)
| Others |
| S | Sanctified
| Others |
| S | Sanctuary
| Others |
| S | Santa
| Others |
| S | Sarah
| Others |
| S | Satisfactory
| Others |
| S | Saturating
| Others |
| S | Save
| Others |
| S | Saved
| Others |
| S | Savior
| Others |
| S | Sayfa
| Others |
| S | Sayi
| Others |
| S | Scattering
| Others |
| S | Scenario
| Others |
| S | Scene
| Others |
| S | Schedule
| Others |
| S | Schema
| Others |
| S | Schnellboot
| Others |
| S | Scholarly
| Others |
| S | Schon (German coin grade equivalent to Fine)
| Others |
| S | Schottenheimer
| Others |
| S | Schwinn bicycle
| Others |
| S | Scott
| Others |
| S | Scrimmage
| Others |
| S | Seadog
| Others |
| S | Seasonal
| Others |
| S | Seclusion
| Others |
| s | Second (Astronomical Tables)
| Others |
| S | Seconds
| Others |
| S | Secret
| Others |
| S | Secure
| Others |
| S | Security (Amenity)
| Others |
| S | Sedate
| Others |
| S | Seek
| Others |
| S | Seite
| Others |
| S | Sell
| Others |
| S | Senorita
| Others |
| S | Sensory
| Others |
| S | Sentence
| Others |
| S | Serve
| Others |