| Acronym | Meaning |
 | ATA | Advanced Technology Attachment (IBM Personal Computer) - Afghan Transitional Authority - Allen Telescope Array -Antarctica (ISO 3166 Trigram) |
| LISA | Laser Interferometer Space Antenna |
| NDAA | U.S. National Defense Authorization Act |
| CCTT | Close Combat Tactical Trainer |
| CLP | Chilean Peso (ISO 4217 Currency Code) -Common [Operating/Operational] Land Picture |
| PE | Ice Pellets (old Style METAR Code) - Peru (ISO 3166 And FIPS 10-4 Country Code Digram) -Physical Education - Premature Ejaculation -Prince Edward Island (postal Code) Price To Earning Ratio (used For Equity Shares) |
| SIS | UK Secret Intelligence Service (also Known As MI6) |
| QNH | Regional Mean Sea Level Atmospheric Pressure (aeronautical Q Code) |
| CIBC | Canadian Imperial Bank Of Commerce (obsolete) |
| NOK | Norwegian Krone (ISO 4217 Currency Code) |
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