| Acronym | Meaning |
 | PO | Dust Devil (METAR Code) -per Os (Latin |
| THG | Tetrahydrogestrinone |
| PPM | Parts Per Million |
| JCP | Java Community Process |
| OSETI | Optical SETI |
| LA | Lanthanum |
| WK | Wake Island (ISO 3166 Digram |
| RSN | Real Soon Now (coined By Author Jerry Pournelle) |
| OMG | Object Management Group - Oh |
| VE | Venezuela (FIPS 10-4 Country Code; ISO 3166 Digram) |
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