| Acronym | Meaning |
 | NEAT | Near-Earth Asteroid Tracking |
| ZN | Zeptonewton |
| SHORADEZ | SHORAD Engagement Zone |
| GULCR | Grupo De Usuarios De Linux De Costa Rica |
| AOU | American Ornithologists' Union |
| VIR | U.S. Virgin Islands (ISO 3166 Trigram) - Virgin Atlantic Airways (ICAO Code) |
| IFAH | International Federation For Animal Health |
| PO | Dust Devil (METAR Code) -per Os (Latin |
| NISCAP | NSA Information System Certification And Accreditation Program |
| SE | Selenium |
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