| Acronym | Meaning |
 | MEK | Magyar Elektronikus Konyvtar - Message Encryption Key - Methyl Ethyl Ketone -Mujahideen Al-Khalq |
| GNAS | Grand National Archery Society |
| HIDACZ | High-Density Airspace Control Zone (high Dak Zed/zee) |
| CR | Coral Sea Islands (FIPS 10-4 Territory Code) - Costa Rica (ISO 3166 Digram) |
| XO | ???†‡?…??? ????‰???? (Xristianos Orthodoksos |
| UUV | Unmanned Underwater Vehicle |
| YD | People's Democratic Republic Of Yemen (ISO 3166 Digram |
| SOCOM | (U.S.) Special Operations Command |
| HDD | Hard Disk Drive - High-Density Disk |
| LTD | Limited |
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