| Acronym | Meaning |
| PA | Picoampere |
| LWS | Land Warrior System |
| SSBN | Nuclear-Powered Ballistic Missile Submarine (US Navy Hull Classification) |
| CADPAT | CAnadian Disruptive PATtern |
| JUGFET | JUnction Gate Field-Effect Transistor |
| SI | Sinhalese Language (ISO 639-1 Code) |
| BSD | Bahamian Dollar (ISO 4217 Currency Code) -Berkeley Software Distribution (distinct From BSoD) |
| MSDE | Maryland State Department Of Education -Microsoft Data[base] Engine - Microsoft SQL Server 2000 Desktop Engine -Military Scenario Development Environment - Mission Simulation Dynamic Engine |
| NOSA | NATO OSI Security Architecture |
| KS | Kansas (postal Symbol) - Republic Of Korea (FIPS 10-4 Country Code) |