| Acronym | Meaning |
| LABVIEW | Laboratory Virtual Instrumentation Engineering Workbench |
| OD | Old Dragon - Ordnance Datum (nautical Charts) -Overdose |
| IMU | International Mathematical Union |
| PID | Pelvic Inflammatory Disease -Plan Identification Number - Positive Identification - Procedural Identification -Procurement Identification Description |
| SARS | Severe Acute Respiratory Syndrome |
| WA | Namibia (FIPS 10-4 Country Code; From West Africa) - Washington State (postal Symbol) - Western Australia (postal Symbol) |
| SEU | Single Event Upset (solid State Physics) - Slightly Enriched Uranium - Special Evidence Unit |
| FIST | Fire Support Team |
| MC | Macao (FIPS 10-4 Territory Code) -Master Of Ceremonies -Megacoulomb -Military Cross (bravery Award) -Monaco (ISO 3166 Digram) -Mortar Carrier -Eleven Hundred (in Roman Numerals) |
| CL | Chile (ISO 3166 Digram) -Co-ordination Line - One Hundred And Fifty (in Roman Numerals) |