| Acronym | Meaning |
| TPS | The Pennington School |
| WEU | Western European Union |
| KK | Kabushiki Kaisha (Japanese For Stock Company |
| DREA | Defence Research Establishment Atlantic (obsolete 2002) |
| YS | Yottasiemens |
| CIAO | Critical Infrastructure Assurance Office - Component-Integrated ACE ORB |
| ASD(C3I) | (U.S.) (Command |
| CAT | Community Acceptance Testing - Computer-Assisted (or Axial) Tomography |
| MOO | Measure Of Outcome |
| PJHQ | Permanent Joint Headquarters |