| Abbreviation | Definition |
|---|---|
| TAA | Technical Assistance Agreement |
| TAA | Temporary Access Authorization |
| TAA | Temporary Area Access |
| TAB | IEEE Technical Activities Board |
| TAB | Timing and Acquisition Bit |
| TAC | Telemetry and Command Computer |
| TAC | Terminating At Canaveral (Kennedy Space Center Landing Site, Florida) |
| TAC | Total Airflow Control |
| TAC | Total Average Cost |
| TAC/RA | TACAN Radar Altimeter |
| TACA | Trans-Atlantic Conference Agreement |
| TACH | Tachometer |
| TACO | Telescope And Accelerator Control Objects |
| TACO | Test and Checkout Operations |
| TAD | Temperature And Dewpoint |
| TAEM | Terminal Area Energy Management |
| TAF | Top-of-Active-Fuel |
| TAG | Technical Air-to-Ground |
| TAGS | Text and Graphics System |
| TAI | Temps Atomique International (International Atomic Time) |