| Acronym | Meaning |
| ZIP | Zoning Improvement Plan Code |
| D | Deuterium |
| CUB | Cuba (ISO 3166 Trigram) |
| YK | Yoctokelvin |
| CEP | Circular Error Probable |
| A4 | Many |
| UGA | Uganda (ISO 3166 Trigram) |
| SSS | Siding Spring Survey - Side Side Side (an Acronym For Remembering Congruent Triangles) |
| SFE | Supercritical Fluid Extraction - Sydney Futures Exchange |
| TN | Tswana Language (ISO 639-1 Code) |