| Acronym | Meaning |
 | CFI | Center For Inquiry (CSICOP) |
| PDF | Panama[nian] Defense Forces (abolished 1990) - Portable Document Format - Principal Direction Of Fire |
| BALCO | Bay Area Laboratory Co-operative |
| TG | Tajik Language (ISO 639-1 Code) |
| WNF | Will Not Fix |
| TAI | Target[ed] Area Of Interest |
| Y | Yotta - Yttrium |
| FL | Femtolitre |
| ASD(C3I) | (U.S.) (Command |
| MARC | MAchine Readable Cataloging (often Also Defined As MAchine Readable Code) |
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