| Acronym | Meaning |
| BRS | Battlefield Reasoning System |
| CHI | Computer-Human Interaction |
| TC | Technetium |
| GA | Irish Language (ISO 639-1 Code) |
| QCD | Quantum ChromoDynamics |
| IVF | In Vitro Fertilisation |
| FS | Femtosiemens |
| IM | Isle Of Man (FIPS 10-4 Territory Code) -Instant Message (internet Speech) |
| SOAP | Simple Object Access Protocol |
| AGU | American Geophysical Union |