| Acronym | Meaning |
| WVSC | Women's Volunteer Service Corps (WWII Canada) |
| SETI | Search For ExtraTerrestrial Intelligence |
| ZA | South Africa (ISO 3166 Digram) - Zambia (FIPS 10-4 Country Code) - Zettaampere |
| ITT | International Telephone And Telegraph (U.S.) |
| SOUTHCOM | (U.S.) Southern Command |
| UPTN | Universal Personal Telecommunications Number - Upper Peninsula Telehealth Network |
| J3 | Joint Operations Directorate |
| HBO | Home Box Office |
| KA | Kiloampere |
| BASIC | Beginner's All-purpose Symbolic Instruction Code (acronym Was Added Later |