| Acronym | Meaning |
| HF | High Frequency |
| EDT | Eastern Daylight Saving Time (UTC-4 Hours) |
| OBE | Officer Of The Order Of The British Empire |
| DTO | Disruptive Technology Office (was ARDA) |
| WEU | Western European Union |
| NCO | Non-Commissioned Officer |
| ESL | English As A Second Language |
| MOE | Measure Of Effectiveness |
| ASUW | AntiSUrface Warfare |
| WHAM | Wisconsin Hydrogen-Alpha Mapping (telescope) |