| Acronym | Meaning |
| GSK | GlaxoSmithKline |
| SCAP | Supreme Commander Allied Powers (Allied Occupation Of Japan) |
| XVIII | Eighteen (in Roman Numerals) |
| GUT | Grand Unification Theory |
| YMD | People's Democratic Republic Of Yemen (ISO 3166 Trigram |
| ETC/RMT | Explosive Transient Camera/Rapidly Moving Telescope |
| ATSD | (U.S.) Assistant To The Secretary Of Defense |
| MZ | Mach-Zehnder (interferometer) -Magnetic Azimuth -Move |
| SWZ | Swaziland (ISO 3166 Trigram) |
| ZR | Zaire (ISO 3166 Digram; Obsolete 1997) |