| Acronym | Definition |
|---|
| TTRS➣Touch-Type Read and Spell (computer course; UK and Ireland) |
| TTRS➣Tall Timbers Research Station (est. 1958; Tallahassee, FL) |
| TTRS➣Total Town Replacement Set (gaming) |
| TTRS➣Time to Restore Service (reliability) |
| TTRS➣Telerate Trading Room System (stocks) |
| TTRS➣Technologically and Topologically Related Surfaces |
| TTRS➣Thermoelectric Thermal Reference Sources |
| TTRS➣Tactical Traffic Reporting System |
| TTRS➣Transportable Transmitter Receiver Shelter |