| Acronym | Meaning |
 | PT | Petatesla -Physical Training (in The Army) -Portugal (ISO 3166 Digram) |
| SGS | South Georgia And The South Sandwich Islands (ISO 3166 Trigram) -Svalbard Ground Station (Landsat) - Soci?t? G?n?rale De Surveillance |
| XVII | Seventeen (in Roman Numerals) |
| BBB | Better Business Bureau - Blood-Brain Barrier |
| CSK | Czechoslovakia (ISO 3166 Trigram; Obsolete Since 1993) |
| AADD | Atlanta Alliance On Developmental Disabilities |
| FIR | Final Inspection Report |
| UNTAC | United Nations Transitional Authority In Cambodia |
| CWC | Chemical Weapons Convention |
| EZLN | Ej?rcito Zapatista De Liberaci›n Nacional (Spanish |
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