| Acronym | Meaning |
| RIG | Reuse Library Interoperability Group |
| PTT | Push To Talk |
| PDES | Product Data Evolvement System |
| ASO | Aviation Supply Office (philadelphia) |
| YFN | Covered Lighter (non Self-propelled) |
| NOE | Nape Of The Earth |
| FOHMD | Fibre-optic Helmet-mounted Display/device |
| CALC | Calculated |
| MAMDT | Mean Active Maintenance Downtime |
| COMPASS | Computer Alerted Surveillance System |