| Meaning | Category |
| Stephan Company | Business->AMEX Symbols |
| Tactical Strength Challenge | Community->Sports |
| Taggart Student Center | Academic & Science->Universities |
| Telecom Signaling Card | Computing->Hardware |
| Test Setup Complete | Governmental->NASA |
| Test Support Coordinator | Governmental->NASA |
| Test System Controller | Computing->Telecom |
| Texas Ski Council | Community->Sports |
| Texas Soul Clinic | Community->Religion |
| Texas Specialty Certified | Miscellaneous->Awards & Medals |
| The Sergeants Club | Governmental->Military |
| The Service Center | Business->Firms |
| The Service Company | Business->Firms |
| The Skull Collectors | Miscellaneous->Hobbies |
| The Space Channel | Community->Media |
| Thermal Shock Chamber | Medical->Physiology |
| Thermally Stimulated Current | Academic & Science->Electronics |
| Thursday Social Club | Community |
| Tilt and Size Corrected | Business->Products |
| Time Stamp Counter | Business->General |
| Toilet Seat Cover | Community->Housing |
| Top Secret Club | Governmental->Military |
| Topping Student Center | Academic & Science->Universities |
| Total Sound Control | Community->Music |
| Tractor Sales Corporation | Miscellaneous->Farming Business->Firms |
| Tractor Supply Company | Business->Firms |
| Tradeshows Seminars And Conventions | Business->General |
| Training Support Center | Governmental->Military |
| Transaction Service Charge | Business->Accounting |
| Transport, Storage, and Communication | Business->Products |
| Transportable Storage Canister | Governmental->Transportation |
| Transportation Systems Center | Academic & Science->Ocean Science |
| Triage Station Controller | Medical->Physiology |
| Trojan Switching Center | Governmental->Military |
| True Stranded Costs | Business->Accounting |
| Tshwa | Regional->Language Codes (3 Letters) |
| Tuberous Sclerosis Complex | Medical->Physiology |
| Tunisian Scientific Consortium | Business->Firms |
| Tuscaloosa Sailing Club | Community->Sports |
| Two Stroke Cycle | Governmental->Transportation |
| Two-Stage Command | Governmental->NASA |
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