| Acronym | Meaning |
| IDC | International Data Corporation |
| JANUS | Joint Academic Network Using Satellites (UK) - Joint Army Navy Uniform Simulation -Joint Army-Navy Staff - Just ANother Useless Simulation (Note: The U.S. Army Janus Simulation Is Not An Acronym) |
| SADD | Students Against Drunk Driving (national School Related Group) |
| PET | Personal Electronic Transactor - Pierre Elliott Trudeau - Positron Emission Tomography (as In PET Scan) - PolyEthylene Terephthalate (plastic) -Preliminary English Test |
| NOAO | National Optical Astronomy Observatory |
| AAI | Applied Artificial Intelligence |
| IAI | International African Institute - Israel Aircraft Industries |
| RTBF | Radio-T?l?vision Belge De La Communaut? Fran?aise |
| NOTAM | Notice To Airmen |
| VCDS | (Canada) Vice-Chief Of The Defence Staff |