| Acronym | Definition |
|---|
| FSX➣Flight Simulator X |
| FSX➣File System Xml |
| FSX➣Financial Services Exchange |
| FSX➣Full Scale Exercise |
| FSX➣Fantasy Stock Exchange (Facebook application) |
| FSX➣Fighter Support Experimental (Japanese military technology) |
| FSX➣Fire Support Execution |
| FSX➣Ferrous Sulphate Xylenol Orange |