| Acronym | Meaning |
| XS | Xiaolin Showdown |
| MACHO | MAssive Compact Halo Object |
| ROTC | Reserve Officer Training Corps (Rawt-Cee) |
| USNA | United States National Arboretum - United States Naval Academy |
| IPR | In Progress Review - Intellectual Property Rights - Intelligence Production Requirement |
| TCA | Transformational Communications Architecture -Turks And Caicos (ISO 3166 Trigram) |
| AAP | Advanced Acquisition Plan - Allied Administrative Publication - American Academy Of Pediatrics |
| SSS | Siding Spring Survey - Side Side Side (an Acronym For Remembering Congruent Triangles) |
| PO | Dust Devil (METAR Code) -per Os (Latin |
| ZA | Zhuang Language (ISO 639-1 Code) |