| Acronym | Meaning |
 | PAPI | Precision Approach Path Indicator (aviation) |
| M | Metre - Milli |
| AK | Alaska (postal Symbol) |
| CR | Coral Sea Islands (FIPS 10-4 Territory Code) - Costa Rica (ISO 3166 Digram) |
| YSA | Youth Service America - Young Socialist Alliance |
| RHLI | Royal Hamilton Light Infantry (Canadian Militia Regiment) |
| ONC | Orthopaedic Nurse Certified |
| EDSA | Epifanio De Los Santos Avenue (a Major Thoroughfare In Manila With Great Significance To Post-1980 Philippines History) |
| THAAD | Theatre High Altitude Area Defence |
| IEW | Intelligence And Electronic Warfare |
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