| Acronym | Meaning |
| SSTO | Single-Stage To Orbit |
| SICS | Swedish Institute Of Computer Science |
| PFO | Pissed |
| ESC | Embryonic Stem Cell |
| NAK | Negative Acknowledge |
| VOX | Voice Operated Oscillator |
| FNA | Functional Needs Analysis |
| CINEOS | Campo Imperatore Near-Earth Objects Survey |
| ANA | Administration For Native Americans - Afghan National Army - All Nippon Airways - Anti-Nuclear Anti-body |
| TUR | Turkey (ISO 3166 Trigram) |