| Acronym | Meaning |
 | ORD | O'hare International Airport In Chicago |
| AESR | Aeronautical Equipment Service Record |
| DCW | Digital Chart Of The World |
| XI | Eleven (in Roman Numerals) |
| URD | User Requirements Document |
| KSC | Kennedy Space Center |
| PAWS | Phased Array Warning System - Progressive Animal Welfare Society |
| HGF | Human Growth Factor |
| RQ | Puerto Rico (FIPS 10-4 Territory Code) |
| PAL | Phase Alternating Line (TV Standard) -Philippine Airlines |
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