| Acronym | Meaning |
| CSK | Czechoslovakia (ISO 3166 Trigram; Obsolete Since 1993) |
| NY | Chichewa Language (ISO 639-1 Code) |
| MNT | Molecular Nanotechnology -Mongolian Tugrik (ISO 4217 Currency Code) |
| UNAIDS | Joint United Nations Programme On HIV/AIDS |
| SCOTUS | Supreme Court Of The United States |
| RSTA | Reconnaissance |
| ACT | R -ACT-Rational (cognitive Model) |
| AAS | Advanced Automation System - American Astronomical Society (double-A-S) |
| ADB | Asian Development Bank |
| PAN | STARRS -Panoramic Survey Telescope And Rapid Response System |