| Acronym | Meaning |
| MIB | Men In Black - Mint In Box (Internet Auction/trading Listings) |
| QNH | Regional Mean Sea Level Atmospheric Pressure (aeronautical Q Code) |
| SLPS | Standard Litre Per Second (air Flow) |
| HBV | Hepatitis B Virus |
| TRANSCOM | U.S. Transportation Command |
| SNU | Solar Neutrino Unit |
| SNS | Spallation Neutron Source |
| COFT | Conduct Of Fire Trainer (military) |
| SNRI | Serotonin-Norepinephrine Reuptake Inhibitor |
| PR | Public Relations -Puerto Rico (postal Symbol; ISO 3166 Digram) |