| Acronym | Meaning |
| JROCM | JROC Memorandum |
| ERA | Earned Run Average - Engineering Research Associates - Equal Rights Amendment - English Racing Automobiles - European Railway Agency |
| LI | Fifty-one (in Roman Numerals) -Liberia (FIPS 10-4 Country Code) - Liechtenstein (ISO 3166 Digram) |
| GUJ | Gujarati Language (ISO 639-2 Code) |
| ACE | Air Combat Emulator (computer Game) - Allied Command Europe - Armored Combat Earthmover - Automatic Computing Engine |
| AAS | Advanced Automation System - American Astronomical Society (double-A-S) |
| CICS | Customer Information Control System (IBM Mainframe Software; Kicks Or C-I-C-S) |
| WCBO | World Chess Boxing Organisation |
| AAA | Administration |
| MEG | MagnetoEncephaloGraphy |