| Acronym | Meaning |
| SIPP | Self-Invested Personal Pension |
| CAPES | CAPability Evaluation System -Combined Arms Planning And Execution System |
| TOC | Table Of Contents - Tactical Operations Centre -Temporo-Occipital Transition Cortex |
| ZA | Zeptoampere |
| IED | Improvised Explosive Device |
| ACA | Airspace Control Authority - Airspace Co-ordination Area - A Current Affair |
| GMPCS | Global Mobile Personal Communications By Satellite |
| NU | Nicaragua (FIPS 10-4 Country Code) - Niue (ISO 3166 Digram) - Nunavut (postal Symbol) |
| YJ | Yoctojoule |
| ARTCC | Air Route Traffic Control Center |