| Acronym | Meaning |
 | MC | Macao (FIPS 10-4 Territory Code) -Master Of Ceremonies -Megacoulomb -Military Cross (bravery Award) -Monaco (ISO 3166 Digram) -Mortar Carrier -Eleven Hundred (in Roman Numerals) |
| NS | Nova Scotia (postal Symbol) - Suriname (FIPS 10-4 Country Code) |
| GA | Irish Language (ISO 639-1 Code) |
| SP | Security Police - Self-Propelled - Shore Patrol -Spain (FIPS 10-4 Country Code) -Start Point - Strong Point |
| A&S | Armament & Standardisation |
| BLSN | Blowing Snow (METAR Code) |
| HMS | Helmet-mounted Display - Her Majesty's Ship (Royal Navy) |
| NSG | National System For Geospatial-Intelligence |
| HVO | Upper Volta (ISO 3166 Trigram; Obsolete 1984) |
| GA | Gallium - Gigaannum |
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