| Acronym | Meaning |
| UCAID | University Corporation For Advanced Internet Development |
| DBX | Debugger For UNIX |
| INQUA | International Quaternary Research Association Or International Association On Quaternary Research |
| IGU | International Geographical Union |
| VELORT | Very Long Range Tracking |
| DDE | Distributed Data Environment |
| CABALS | Carrier Balloon System |
| ABM | Antiballistic Missile |
| SEC | Securities & Exchange Commission |
| GPS CORS | Global Positioning System Continuously Operating Reference Stations |