a small particle rubbed off by a file when smoothing or shaping something

iron filings

place (a document) in a cabinet, box, or folder in a particular order

the contract, when signed, is filed

he still had the moment filed away in his memory

(of a group of people) walk one behind the other, typically in an orderly and solemn manner

the mourners filed into the church

smooth or shape with a file

never file your nails from the centre to the sides