| Abbreviation | Definition |
|---|---|
| TCTO | Time Compliance Technical Order |
| TCU | Tactical Computer Unit |
| TCU | Terminal Control Unit |
| TCU | Transportable Computer Unit |
| TCUV1 | Terminal Control Unit - Commercial Version |
| TCUV1 | Terminal Control Unit, Version 1 - Commercial Version |
| TCUV2 | Terminal Control Unit - Ruggedized Version |
| TCUV2 | Terminal Control Unit, Version 2 - Ruggedized Version |
| TCV | Troop Carrying Vehicle |
| TCW | Temporal Cold War |
| TCW | Tula Cartridge Works |
| TCZ | The Combat Zone |
| TD | Target Defeat |
| TD | Targeted Delivery |
| TD | Technical Demonstration |
| TD | Technology Demonstration |
| TD | Technology Demonstrator |
| TD | Temporary Duty |
| TD | Terrain Data |
| TD | Theater Distribution |