| Acronym | Meaning |
 | QAP | Quadripartite Advisory Publication (kwapp) |
| GBE | Knight/Dame Grand Cross Of The Order Of The British Empire |
| HMS | Helmet-mounted Display - Her Majesty's Ship (Royal Navy) |
| IED | Improvised Explosive Device |
| RSJ | Rolled Steel Joist (construction) |
| REEF | Reef Environmental Education Foundation |
| PKI | Public Key Infrastructure (cryptography) |
| EMP | ElectroMagnetic Pulse |
| KG | Kyrgyzstan (FIPS 10-4 Country Code; ISO 3166 Digram) |
| SEU | Single Event Upset (solid State Physics) - Slightly Enriched Uranium - Special Evidence Unit |
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