A single file of soldiers; (by extension) any single file.
A narrow passage or way (originally (military), one which soldiers could only march through in a single file or line), especially a narrow gorge or pass between mountains.
An act of marching in files or lines.
An act of defilading a fortress or other place, or of raising the exterior works in order to protect the interior.
To make (someone or something) physically dirty or unclean; to befoul, to soil.
Synonym of defilade (“to fortify (something) as a protection from enfilading fire”)
To act inappropriately towards or vandalize (something sacred or special); to desecrate, to profane.
To make (someone or something) morally impure or unclean; to corrupt, to tarnish.
To cause (something or someone) to become ritually unclean.
A feather plume on some soldier's uniforms, especially the hat or helmet.
By extension (because the hackles of a rooster are lifted when it is angry), the hair on the nape of the neck in dogs and other animals; also used figuratively for humans.
Any flimsy substance unspun, such as raw silk.
A type of jagged crack extending inwards from the broken surface of a fractured material.
A feather used to make a fishing lure or a fishing lure incorporating a feather.
An instrument with steel pins used to comb out flax or hemp.
A plate with rows of pointed needles used to blend or straighten hair.
One of the long, narrow feathers on the neck of birds, most noticeable on the rooster.
To separate, as the coarse part of flax or hemp from the fine, by drawing it through the teeth of a hackle or hatchel.
To dress (flax or hemp) with a hackle; to prepare fibres of flax or hemp for spinning.