| Acronym | Meaning |
 | MSEC | Message Security Encryption Code (emm-sec) |
| LIFO | Last In |
| FOS | Family Of Systems |
| FG | Fog (METAR Code) - French Guiana (FIPS 10-4 Territory Code) |
| PKA | Previously Known As - Professionally Known As |
| OK | Oklahoma (postal Symbol) -oll Korrect (facetious Alteration Of All Correct |
| YL | Yottalitre |
| T/O | Theatre Of Operations |
| QZ | Awair (IATA Airline Designator) |
| WST | Water Soluble Tetrazolium (assay) -Samoan Tala (ISO 4217 Currency Code) |
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