| Acronym | Meaning |
| HOSTAC | Helicopter Operations From Ships Other Than Aircraft Carriers |
| FWIW | For What It's Worth |
| LVEF | Left Ventricular Ejection Fraction |
| JANUS | Joint Academic Network Using Satellites (UK) - Joint Army Navy Uniform Simulation -Joint Army-Navy Staff - Just ANother Useless Simulation (Note: The U.S. Army Janus Simulation Is Not An Acronym) |
| IS | Icelandic Language (ISO 639-1 Code) |
| IUPAC | International Union Of Pure And Applied Chemistry (pronounced Eye-yoo-pac) |
| BW | Botswana (ISO 3166 Digram) |
| AB | Abkhaz Language (ISO 639-1 Code) |
| RATELO | Radiotelephone Operator |
| I.E. | Id Est (Latin |