| Acronym | Meaning |
| CLIPS | A Nasa Expert System Shell - C Language |
| NSA | National Security Agency |
| ADCS | Airborne Data Collection System |
| AUD | Audio |
| NDS | Non-developmental Software |
| DEC | Decrease |
| AIC | Air Intercept Controller |
| MATCALS | Marine Air Traffic Control And Landing System |
| DPRO | Defense Plant Representative Office |
| SSN | Attack Submarine (nuclear Powered) |