| Acronym | Meaning |
 | SV | El Salvador (ISO 3166 Digram) -Sportverein (German For Sport Association |
| J | Joule |
| ORD | O'hare International Airport In Chicago |
| OCA | Observatoire De La C?te D'Azur - Offensive Counter-Air |
| LSE | Least Squares Estimate/Error - London School Of Economics - London Stock Exchange |
| UMES | University Of Maryland Eastern Shore |
| SIFF | Successor IFF |
| SG | Seaborgium |
| NEA | Near-Earth Asteroid - Nuclear Energy Agency (OECD) |
| MAF | Maintenance Action Form |
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