| Acronym | Meaning |
 | ABW | Aruba (ISO 3166 Trigram) |
| DTI | UK Department Of Trade And Industry |
| JIVE | Joint Institute For VLBI (Very Long Baseline Interferometry) In Europe |
| EM | Exametre |
| MRTFB | U.S. Major Range And Test Facility Base |
| NSABB | National Science Advisory Board For Biosecurity |
| OASIS | Ontario Association Of Sewage Industry Services |
| CAFAD | Combined Arms For Air Defence |
| MBTA | Massachusetts Bay Transportation Authority - Migratory Bird Treaty Act (U.S.) |
| CTSS | Compatible Time-Sharing System |
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