| Acronym | Meaning |
 | PADI | Professional Association Of Diving Instructors |
| SUB | Student Union Building |
| IPTV | Internet Protocol TeleVision |
| RAG | Raising And Giving - Rocket Antitank Grenade |
| NSTAC | National Security Telecommunications Advisory Committee |
| BWR | Boiling-Water Reactor |
| MPSI | Member Of The Pharmaceutical Society Of Ireland |
| ACA | Airspace Control Authority - Airspace Co-ordination Area - A Current Affair |
| OR | Operating Room (surgery) - Operational/Operations Research -Oregon (postal Symbol) |
| VEN | Venezuela (ISO 3166 Trigram) |
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