| Acronym | Meaning |
| PIG | Pipeline Inspection Gauge |
| DDOS | Distributed Denial Of Service |
| NARDIC | U.S. Navy Acquisition Research And Development Information Center |
| LJ | La Jolla - Larry Johnson - LaserJet - Library Journal - Linux Journal - LiveJournal - Ljubljana - Lord Justice Of Appeal -Sierra National Airlines (IATA Code) |
| BAR | British American Racing - Browning Automatic Rifle - Buy-American Restrictions |
| QCD | Quantum ChromoDynamics |
| HAW | Heavy Antitank Weapon |
| BMR | Basal Metabolic Rate ? Bronirovannaya Mashina Razminirovaniya (Russian ????????????? ?????? ?????????????? |
| SPQR | Senatus Populus Que Romanus (Latin The Senate And The People Of Rome) |
| EMCON | (Electromagnetic) Emissions Control |