| Meaning | Category |
| Pascal stub Object file | Computing->File Extensions |
| Science and Technology Objective | Governmental->Military |
| Security Through Obscurity | Computing->Security |
| Service To Others | Community->Religion |
| Space Tornado Ogawa | Miscellaneous->Funnies |
| Special Team Operations | Governmental->Military |
| Special Touring Option | Governmental->Transportation |
| Special Tournament Options | Community->Sports |
| Spontaneous Time Off | Governmental->US Government |
| Stage To Orbit | Governmental->NASA |
| Standing Take Over | Community->Sports |
| Stating The Obvious | Governmental->US Government |
| Still The One | Community->Religion |
| Stockholm, Sweden | Regional->Airport Codes |
| Storage | Governmental->Military Governmental->NASA |
| Store | Computing->Assembly |
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