| Acronym | Meaning |
| ISM | Industrial |
| MCM | Mine Counter-Measures |
| RISC | Reduced Instruction Set Computer |
| PI | Pebi |
| ML | Millilitre |
| A/S | Anti-submarine |
| MN | Meganewton - Minnesota (postal Symbol) - Monaco (FIPS 10-4 Country Code) - Mongolia (ISO 3166 Digram) |
| BRIMS | Behavior Representation In Modeling And Simulation (conference) |
| FFA | Forum Fisheries Agency -Free-Fire Area - Fusiform Face Area - Football Federation Australia - Future Farmers Of America (today The National FFA Organization) |
| AY | Aymara Language (ISO 639-1 Code) |