| Acronym | Meaning |
| GPT | GEC-Plessey Telecommunications - General Purpose Technology - Get Paid To Website |
| LJ | La Jolla - Larry Johnson - LaserJet - Library Journal - Linux Journal - LiveJournal - Ljubljana - Lord Justice Of Appeal -Sierra National Airlines (IATA Code) |
| IDF | Israel Defence Forces - Intel Development Forum - International Dairy Federation |
| DTO | Disruptive Technology Office (was ARDA) |
| I2WD OR I?WD | U.S. Intelligence And Information Warfare Directorate (CERDEC) |
| EIA | Environmental Impact Assessment |
| COEIA | Combined Operational Effectiveness And Investment Appraisal (military) |
| SACLOS | Semi-Automatic Command To Line Of Sight |
| BSL | British Sign Language |
| MMOR | Master Of Management In Operations Research |