Definition of defile

< defile

define >

de·file²    (d-fl) KEY 

intr.v.
de·filed, de·fil·ing, de·files

To march in single file or in files or columns.

NOUN:

1. A narrow gorge or pass that restricts lateral movement, as of troops.
2. A march in a line.

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ETYMOLOGY:
French défiler : dé-, away, off (from Old French de-; see de-) + file, line, file (from Old French filer, to spin thread, march in line; see file¹). N., from French défilé from past participle of défiler