| 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) |
| COB | Close Of Business [day] |
| MA | Master Of Arts -Madagascar (FIPS 10-4 Country Code) - Massachusetts (postal Symbol) - Megaampere - Morocco (ISO 3166 Digram) |
| AF | Afrikaans Language (ISO 639-1 Code) |
| MIMAROPA | Mindoro |
| IWARS | Infantry Warrior Simulation |
| IPW | Interrogation Of Prisoners Of War |
| MBBL | (U.S. Armor Center) Mounted Battlespace Battle Laboratory |
| EVA | Extra-Vehicular Activity |
| U | Uranium |