To march off in a line, file by file; to file off.
- To make filthy or dirty; pollute: defile a river with sewage.
- To debase the pureness or excellence of; corrupt: a country landscape that was defiled by urban sprawl.
- To profane or sully (a reputation, for example).
- To make unclean or unfit for ceremonial use; desecrate: defile a temple.
- To violate the chastity of.
- To march in single file or in files or columns.
- A narrow gorge or pass that restricts lateral movement, as of troops.
- A march in a line.