To place a document in a particular order or category for storage or reference. She needs to file these reports in the cabinet by the end of the day.
To submit a document or application to an authority or organization. He decided to file a complaint with the customer service department.
To smooth or shape something with a file tool. She filed the edges of the metal sheet to remove any sharp burrs.
To march or walk in a line, one behind the other. The students filed into the auditorium for the assembly.