Real Dictionary

file
countable noun: A file is a box or a folded piece of heavy paper or plastic in which letters or documents are kept.
countable noun: A file is a collection of information about a particular person or thing.
verb: If you file a document, you put it in the correct file.

filé in American English
powdered sassafras leaves, used in Creole cooking
noun: a powder made from the ground leaves of the sassafras tree, used as a thickener and to impart a pungent taste to soups, gumbos, and other dishes

file in American English 1
to arrange (papers, etc.) in order for future reference
to move in a line
noun: a folder, cabinet, or other container in which papers, letters, etc., are arranged in convenient order for storage or reference

file in American English 2
a steel tool with a rough, ridged surface for smoothing, grinding down, or cutting through something
to smooth, grind down, or cut through as with a file
noun: a long, narrow tool of steel or other metal having a series of ridges or points on its surfaces for reducing or smoothing surfaces of metal, wood, etc.
transitive verb: to reduce, smooth, or remove with or as if with a file

file in American English 3
to make foul; defile
transitive verb: to defile; corrupt

file in British English 1
noun: a folder, box, etc, used to keep documents or other items in order

file in British English 2
noun: a hand tool consisting essentially of a steel blade with small cutting teeth on some or all of its faces. It is used for shaping or smoothing metal, wood, etc
verb: to shape or smooth (a surface) with a file

file in British English 3
verb: to pollute or defile