| Acronym | Meaning |
| VCR | Video Cassette Recorder |
| LU | Lutetium |
| OSERS | U.S. Department Of Education Office Of Special Education And Rehabilitative Services |
| BRIMS | Behavior Representation In Modeling And Simulation (conference) |
| ACSC | Army Command And Staff College (various Nations) |
| ELL | Greek Language (ISO 639-2 Code) |
| STM | Short Term Memory |
| R2I | Resistance To Interrogation |
| RTG | Radio-isotope Thermoelectric Generator Also Used For Rubber Tyred Gantry Crane |
| PABX | Private Automated Branch EXchange (company Phone System) |