| Acronym | Meaning |
| PCB | See Entry |
| EOS | Earth Observation Satellite |
| DDR&E | (U.S.) Director Of Defense Research And Engineering (1958?1978) |
| UESAC | Uppsala-ESO Survey Of Asteroids And Comets |
| NS | Nanosecond |
| EH | Exahenry - Western Sahara (ISO 3166 Digram) |
| AVUM | Aviation Unit Maintenanc |
| DAN | Danish Language (ISO 639-2 Code) |
| BASE | Building |
| WIPP | [Nuclear] Waste Isolation Pilot Project |