■ noun
1》 a coarse file for use on metal, wood, or other hard material.
2》 a harsh, grating noise.
■ verb
1》 (of a rough surface or object) scrape in a painful or unpleasant way.
↘make a harsh, grating noise.
2》 file with a ~.
Derivatives
~er noun
~ing adjective
~ingly adverb
~y adjective
Origin
ME (as v.): from OFr. ~er , perh. of Gmc origin.