| Acronym | Meaning |
 | ADD | Analog Digital Digital (CD Quality) - Attention-Deficit Disorder - Administration On Developmental Disabilities |
| A | Acro (joke Acronym) |
| CECOM | U.S. Army Communications And Electronics Command |
| GBBC | Great Backyard Bird Count |
| MPA | Millipascal |
| HIPPARCOS | HIgh Precision Parallax COllecting Satellite |
| EST | Estonian Language (ISO 639-2 Code) |
| CW | Continuous Wave (laser) -Cook Islands (FIPS 10-4 Territory Code) |
| ABMC | American Battle Monuments Commission |
| NCI | U.S. National Cancer Institute |
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