| Acronym | Meaning |
| BRI | Bathroom Readers Institute (publishers Of Series Of Uncle John's Bathroom Readers Books) |
| MC&G | Mapping |
| APCNR | Armour-Piercing |
| PPLI | Precise Participant Location & Identification |
| LO | Slovakia (FIPS 10-4 Country Code) |
| UGV | Unmanned Ground Vehicle |
| SH | Serbo-Croatian Language (ISO 639-1 Code) |
| FS | Fire Support (military) -French Southern And Antarctic Territories (FIPS 10-4 Territory Code) |
| PG | Picogram |
| IMSA | Illinois Mathematics And Science Academy - International Mind Sports Association - International Motor Sports Association |