| Abbreviation | Definition |
|---|---|
| TSR | Tactical Studies Rules |
| TSR | Telecommunications Service Request |
| TSR | Terminate And Stay Resident |
| TSR | Theater Source Registry |
| TSR | Theater Storage Activities |
| TSR | Theater Support Representative |
| TSR | Time Sensitive Reporting |
| TSR | Totally Secure Region |
| TSR | Trackline Single-Unit Return |
| TSS | Tactical Shelter System |
| TSS | Target Sensing System |
| TSS | Technical Services Staff |
| TSS | Time Signal Set |
| TSS | Timesharing System |
| TSS | Top Secret Security |
| TSS | Traffic Service Station |
| TSSAM | Tri- Service Standoff Attack Missile |
| TSSI | Top Secret Special Intelligence |
| TSSP | Tactical Satellite Signal Processor |
| TSSP | Technical Stores Supply Point |