| Acronym | Meaning |
| WMO | World Meteorological Organization |
| ETH | Eidgenossische Technische Hochschule |
| FAL | Frontier Airline |
| RBV | Return Beam Vidicon |
| ADS | Ancillary Data Service |
| APEX | Advance Purchase Excursion |
| CBB | Contract Budget Baseline |
| MIT | Massachusetts Institute Of Technology |
| FOB | Free On Board |
| AGGG | Advisory Group On Greenhouse Gases |