| Acronym | Meaning |
 | 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) |
| ARNET | Acquisition Reform Network |
| CASE | Cellular Ammunition Storage Equipment - Computer-Aided Software Engineering |
| CSRF | Cross-Site Request Forgery |
| RTGS | Royal Thai General System Of Transcription - Real Time Gross Settlement |
| DIAC | Department Of Immigration And Citizenship (Australia) [1] |
| TVA | Tennessee Valley Authority |
| TSOP | Tactical Standing Operation Procedure |
| MWC | Maritime Warfare Centre (various Nations) |
| CV | Many |
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