| Acronym | Meaning |
| LOS | Line Of Sight |
| FSCL | Fire Support Co-ordination Line |
| ALAP | As Long/Late As Possible |
| STI | Sexually Transmitted Infection - Subaru Tecnica International |
| XX | Twenty (in Roman Numerals) |
| STD | S?o Tom? And PrĀncipe Dobra (ISO 4217 Currency Code) -Sexually Transmitted Disease |
| LUG | Linux User Group |
| TDP | Technology Demonstration Programme |
| EHR | Equipment History Record |
| OPSI | Overwhelming Post Splenectomy Infection - UK Office Of Public Sector Information |