| Acronym | Meaning |
| CONTIG | Contiguous |
| RIF | Relative Importance Factor |
| ESVS | Escape System Ventilation System |
| GRN | Green |
| RAM | Research And Applications Module |
| CF | Center Forward |
| W | Wide |
| LANDC | Instrumentation And Communication |
| MSOIN | Minor Subcontractor Or IDWA Notification |
| OCDU | Optics Coupling Data Unit (G&N) |