| Acronym | Meaning |
| PTSD | Post-Traumatic Stress Disorder |
| XV | Fifteen (in Roman Numerals) |
| NSTAC | National Security Telecommunications Advisory Committee |
| SO | Shared Object (Unix) - Sheriff's Office - Significant Other -Somalia (ISO 3166 And FIPS 10-4 Country Code Digram) |
| NR | Southern Ndebele Language (ISO 639-1 Code) |
| NIAAA | U.S. National Institute On Alcohol Abuse And Alcoholism |
| CFG | Context-free Grammar - Control Flow Graph |
| MLT | Maltese Language (ISO 639-2 Code) |
| KIR | Kiribati (ISO 3166 Trigram) |
| CAFE | Corporate Average Fuel Economy Standard |