| Acronym | Meaning |
| SK | Saskatchewan (postal Symbol) - Slovakia (ISO 3166 Digram) |
| NFK | Norfolk Island (ISO 3166 Trigram) |
| OPAC | Online Public Access Catalogue |
| UBC | United Baptist Church - University Of British Columbia |
| EST | Estonian Language (ISO 639-2 Code) |
| VIII | 8 (in Roman Numerals) |
| UE | Unit Of Employment |
| CJ | Cayman Islands (FIPS 10-4 Country Code) -Criminal Justice |
| AFG | Afghanistan (ISO 3166 Trigram) |
| JTRS | Joint Tactical Radio System (jitters) |