| Acronym | Meaning |
| DARO | (U.S.) Defense Airborne Reconnaissance Office |
| 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) |
| FDA | Food And Drug Administration (U.S.) |
| ARRC | ACE Rapid Reaction Corps |
| SF&F | Science Fiction & Fantasy |
| LO | Slovakia (FIPS 10-4 Country Code) |
| JITC | Joint Interoperability Test Command |
| NEI | National Eye Institute - Not Enough Information - Nuclear Energy Institute |
| JCP | Java Community Process |
| GSM | General Service Medal - Grams Per Square Metre (paper Thickness; Properly G/m?) - Ground Station Module - Groupe Sp?cial Mobile (French |