| Acronym | Meaning |
| XVIII | Eighteen (in Roman Numerals) |
| YA | Yottayear |
| HVO | Upper Volta (ISO 3166 Trigram; Obsolete 1984) |
| VCJD | Variant Creutzfeldt-Jakob Disease |
| AMC | Adaptive Modulation And Coding (digital Communications) - U.S. Air Mobility Command - American Motors Corporation - U.S. Army Materiel Command |
| IE | Indo-European Languages - Internet Explorer -Ireland (ISO 3166 Digram) |
| FSV | Fire Support Vehicle - Fisheries Survey Vessel - Flexible Sender Validation - Fort St. Vrain - Fu Ball Und Sportverein (German Football And Sport Association |
| MX | Mail Exchange -Mexico (FIPS 10-4 Country Code; ISO 3166 Digram) -Missile EXperimental |
| GPG | GNU Privacy Guard |
| PCMCIA | Personal Computer Memory Card International Association (People Can't Memorise Computer-Industry Acronyms) |