| Acronym | Meaning |
| CPD | Capabilities Production Document |
| WWW | World Wide Web |
| CIAO | Critical Infrastructure Assurance Office - Component-Integrated ACE ORB |
| HAT | Highest Astronomical Tide (nautical Charts) -Hungarian Automated Telescope |
| BDI | Burundi (ISO 3166 Trigram) |
| ILS | Israeli Shekel (ISO 4217 Currency Code) |
| LAT | Latin Language (ISO 639-2 Code) |
| WWIII | World War III |
| HMS | Helmet-mounted Display - Her Majesty's Ship (Royal Navy) |
| MOLO | Mobile Other Licenced Operator (UK) |