| Acronym | Meaning |
| UST | Underground Storage Tank |
| ZJ | Zeptojoule |
| ACID | Atomicity |
| UNABOM | University And Airline Bomber (FBI Case Name) |
| BOC | British Orthodontic Society - British Oxygen Company |
| AS | Attosiemens |
| VK | Australia (ham Radio Code) -V?sterbottens-Kuriren |
| BB | Barbados (ISO 3166 Digram; FIPS 10-4 Country Code) -Boys' Brigade (Christian Youth Organisation) - Brigitte Bardot (actress) |
| W/O | Without: Software W/o Documentation |
| CU | Old Church Slavonic Language (ISO 639-1 Code) |