| Acronym | Meaning |
| RSRE | UK Royal Signals And Radar Establishment (1976?1991) |
| UNDE | Union Of National Defence Employees (Canada) |
| EN | English Language (ISO 639-1 Code) |
| ICD | Implantable Cardioverter-Defibrillator - Initial Capabilities Document - International Classification Of Diseases |
| A | Atto |
| NOTAFLOF | No One Turned Away For Lack Of Funds |
| A&S | Armament & Standardisation |
| KKK | Ku Klux Klan |
| ISRO | Indian Space Research Organisation |
| UPN | United Paramount Network |