| Acronym | Meaning |
| UMIST | University Of Manchester Institute Of Science And Technology |
| SAS | Scandinavian Airline Systems - Second Avenue Subway - Situational Awareness System - Special Air Service - Studies |
| MECC | Minnesota Educational Computing Consortium (later Corporation |
| NIB | New In Box (Internet Auction/trading Listings) |
| BODMAS | Brackets |
| DY | Dysprosium |
| EM | ElectroMagnetism/ElectroMagnetic |
| GFN | Global Footprint Network |
| OM | Oromo Language (ISO 639-1 Code) |
| DEM | Data Exchange Mechanism - Digital Elevation Model |