| Acronym | Meaning |
| OGD | Other Government Department |
| J2SE | Java 2 Platform |
| HBCD | HexaBromoCycloDodecane |
| MWC | Maritime Warfare Centre (various Nations) |
| CSPI | Center For Science In The Public Interest |
| IDO | Ido Language (ISO 639-2 Code) |
| FZRA | Freezing Rain (METAR Code) |
| MT | Meitnerium |
| AIDS | Acquired Immune Deficiency Syndrome |
| IE | Interlingue Language (ISO 639-1 Code) |