Defile may refer to:
* To make
dirty or
impure
*
Defile (geography), in geography, a narrow pass or gorge between mountains
*
Defile (military), to march off in a line
*
The Defile, a pass between Suess Glacier and Nussbaum Riegel in Victoria Land, Antarctica
*
Battle of the Defile or Battle of the Pass, 731 battle between the Umayyads and Turks
See also
*
File (disambiguation)
*
Contamination
*
Pollution
{{disambiguation
