| Acronym | Meaning |
 | YI | Yiddish Language (ISO 639-1 Code) |
| ES | Einsteinium - Exasecond |
| AMSO | U.S. Army Model And Simulation Office |
| MLWN | Mean Low Water Neaps (nautical Charts) |
| FEF | Frontal Eye Field (neurophysiology) |
| UCBSA | United Cricket Board Of South Africa |
| GAO | U.S. Government Accountability Office |
| AB | Abkhaz Language (ISO 639-1 Code) |
| AFRTS | Armed Forces Radio And Television Service |
| NNSA | U.S. National Nuclear Security Administration |
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