| Acronym | Meaning |
| CFHT | Canada-France-Hawaii Telescope |
| LR | Liberia (ISO 3166 Digram) |
| TSO | Tsonga Language (ISO 639-2 Code) |
| FKSM | Fort Knox Supplemental Manual |
| TNT | TriNitroToluene |
| AVA | Avar Language (ISO 639-2 Code) |
| GCN | Gamma-ray Burst Coordination Network |
| EDCS | Environmental Data Coding Specification |
| OSCE | Organisation For Security And Cooperation In Europe |
| LCE | Leaving Certificate Examination - Load Carrying Equipment - London Commodity Exchange |