| Acronym | Meaning |
 | ET | Ethiopia (ISO 3166 Digram; FIPS 10-4 Country Code) - Exatesla -Extra Terrestrial |
| BK | Bankrupt (most Often Seen As Gone BK) -Bosnia And Herzegovina (FIPS 10-4 Country Code) |
| ZN | Zinc |
| ATC | Air Traffic Control - Air Training Corps - U.S. Air Transport Command (1942-1948) |
| CDC | Centers For Disease Control And Prevention - Control Data Corporation - Cult Of The Dead Cow |
| NOAO | National Optical Astronomy Observatory |
| DMI | Desktop Management Interface (computing) |
| POK | Plane Of Knowledge |
| EBE | Extraterrestrial Biological Entity |
| SSA | Cargo Submarine (US Navy Hull Classification) |
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