v (transitive) To place in an archive in a logical place and order
v (transitive) To store a file (gloss|aggregation of data) on a storage medium such as a disc or another computer.
v (transitive) To shape (an object) by cutting with a file (cutting tool).
v (intransitive) To cut with a file (cutting tool).
v (intransitive|with for|chiefly|_|legal) To make a formal request for the benefit of an official status.
n A column of people one behind another, whether "single file" or in a large group with many files side by side.
n (chess) one of the eight vertical lines of squares on a chessboard (i.e., those which run from number to number). The analog horizontal lines are the ranks.
n A hand tool consisting of a handle to which a block of coarse metal is attached, and used for removing sharp edges or for cutting, especially through metal