| Acronym | Meaning |
 | PV | Petavolt |
| CSC | Closed Spacelike Curve (relativity) - Computer Security Centre |
| PIPA | Program On International Policy Attitudes |
| RO | Range Only - Red Orchestra -Romania (ISO 3166 And FIPS 10-4 Country Code Digram) |
| LAR | Light Armoured Reconnaissance - Logistics Assistance Representative |
| BLOB | Binary Large OBject |
| IHO | International Hydrographic Organization |
| LU | Tshiluba Language (ISO 639-1 Code) |
| CBS | Columbia Broadcasting System - Corps Battle Simulation |
| HM | Heard Island And McDonald Islands (ISO 3166 Digram; FIPS 10-4 Territory Code) |
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