| Acronym | Meaning |
 | DTI | UK Department Of Trade And Industry |
| WU | Wabash University - Washington University In St. Louis - Western Union - Windows Update - Work Unit - WU Wien (German Wirtschaftsuniversit?t Wien |
| 4D | Four-dimensional (usually Three Spatial Plus One Temporal Dimension |
| DHY | Dahomey (ISO 3166 Trigram; Became BEN In 1977) |
| ICO | Intermediate Circular Orbit |
| UUA | Unitarian Universalist Association |
| SOF | Special Operations Force- Status Of Forces |
| SME | Northern Sami Language (ISO 639-2 Code) |
| FIFO | First In |
| ML | Malayalam Language (ISO 639-1 Code) |
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