| Acronym | Meaning |
| RMC | Royal Military College (Australia |
| RISC | Reduced Instruction Set Computer |
| FISH | Fluorescence In-Situ Hybridisation |
| CIBC | Canadian Imperial Bank Of Commerce (obsolete) |
| IAB | International Association For Biologicals |
| LJ | La Jolla - Larry Johnson - LaserJet - Library Journal - Linux Journal - LiveJournal - Ljubljana - Lord Justice Of Appeal -Sierra National Airlines (IATA Code) |
| SSGN | Nuclear-Powered Guided Missile Submarine (US Navy Hull Classification) |
| FSE | Fire Support Element |
| DISSTAF | DIS Search And Target Acquisition Fidelity Experiment |
| UMK | Uniwersytet Miko?aja Kopernika (Polish Nicolaus Copernicus University) |