| Acronym | Meaning |
| DIFAR | DIrectional Frequency Analysis And Recording |
| AADT | Annual Average Daily Traffic Flow |
| VTOL | Vertical Take-Off & Landing |
| UHRB | Ultra-High Resolution Building (simulation) |
| CD1 | Cluster Of Differentiation 1 (a Small Gene Family) |
| WHO | World Health Organisation |
| AJ | Azerbaijan (FIPS 10-4 Country Code) |
| IML | International Mister Leather |
| BHD | Bahraini Dinar (ISO 4217 Currency Code) |
| H/MAD | High/Medium Altitude Air Defence (aytchmad; See Also HIMAD) |