| Acronym | Meaning |
| Y | Yotta - Yttrium |
| RSI | Repetitive Strain Injury |
| OSERS | U.S. Department Of Education Office Of Special Education And Rehabilitative Services |
| CRE | Cree Language (ISO 639-2 Code) |
| IBO | Igbo Language (ISO 639-2 Code) |
| PFO | Pissed |
| LIBS | Laser Induced Breakdown Spectroscopy |
| TT | Teratesla -Terrestrial Time - Tourist Trophy (Motorcycle Sport) -Trinidad And Tobago (ISO 3166 Digram) |
| LTC | Lieutenant-Colonel (U.S.) |
| ZM | Zambia (ISO 3166 Digram) |