| Acronym | Meaning |
| TRAC | (U.S. Army) TRADOC Analysis Center |
| IP | Clipperton Island (FIPS 10-4 Territory Code) -Initial Point - Intellectual Property - Internet Protocol |
| LARC | Livermore Advanced Research Computer (cf. LLNL) |
| HVU | High Value Unit (military) |
| LPD | Landing Platform Dock (Navy Hull Classification) - Low Probability Of Detection |
| NETL | (US) National Energy Technology Laboratory |
| RS | Russia (FIPS 10-4 Country Code) |
| PM | Panama (FIPS 10-4 Country Code) -Perry Mason - Phase Modulation - Post Meridiem (Latin After Noon) - Prime Minister - Project Manager -Saint Pierre And Miquelon (ISO 3166 Digram) |
| SIYSS | Stockholm International Youth Science Seminar |
| FLET | Forward Line Of Enemy Troops |