| Acronym | Meaning |
| ATAS | Air-To-Air Stinger (missile) |
| DTIC | (U.S.) Defense Technical Information Center |
| FI | Finnish Language (ISO 639-1 Code) |
| ES | Spanish Language (ISO 639-1 Code) |
| ISCCP | International Satellite Cloud Climatology Project |
| AVI | Audio Video Icon |
| DARPA | U. S. Defense Advanced Research Projects Agency |
| N/T | (Aa) No Text |
| ICO | Intermediate Circular Orbit |
| EBCDIC | Extended Binary Coded Decimal Interchange Code (pronounced Eb-see-dik) (cf. BCD) |