| Acronym | Meaning |
| PLAF | Product Line Architecture Framework |
| TB | Tuberculosis |
| MACHO | MAssive Compact Halo Object |
| VFR | Visual Flight Rules |
| CME | Coronal Mass Ejection (usually Sun) |
| PCC | NATO Partnership Coordination Cell - Posterior Cingulate Cortex - Pre-Command Course - Presidents Conference Committee |
| SJA | Staff Judge Advocate (military Law) |
| TRAIN | Tourist Railway Association |
| SQ | Albanian Language (ISO 639-1 Code) |
| AN | Andorra (FIPS 10-4 Country Code) - Netherland Antilles (ISO 3166 Digram) |