| Acronym | Meaning |
| MMO | Massively Multiplayer Online (computer Game) |
| GALCIT | Guggenheim Aeronautical Laboratory |
| LPC | Linear Predictive Coding |
| UNIS | University Of Surrey |
| CAI | Computer Assisted Instruction |
| TASM | Tactical Air-to-Surface Missile |
| OS | Ossetic Language (ISO 639-1 Code) |
| ER | Emergency Room -Eritrea (ISO 3166 Digram; FIPS 10-4 Country Code) |
| NOSA | NATO OSI Security Architecture |
| TUV | Tuvalu (ISO 3166 Trigram) |