| Acronym | Definition |
|---|
| XF➣Experimental Fighter (US military aircraft designation) |
| XF➣X-Files |
| XF➣Extra Fine |
| XF➣X Factor (Soldier of Fortune 2 Clan) |
| XF➣Ex Factory (Charlotte, NC) |
| XF➣Extended Family |
| XF➣Xtreme Forces (Unreal Tournament gaming clan) |
| XF➣Xilinx Foundation |
| XF➣Excel Formula Virus |
| XF➣Xtreme Fraggers (gaming clan) |
| XF➣External Flag Status |
| XF➣Xenforo (software) |