noun, verb, filed, fil⋅ing.| 1. | a folder, cabinet, or other container in which papers, letters, etc., are arranged in convenient order for storage or reference. |
| 2. | a collection of papers, records, etc., arranged in convenient order: to make a file for a new account. |
| 3. | Computers. a collection of related data or program records stored on some input/output or auxiliary storage medium: This program's main purpose is to update the customer master file. |
| 4. | a line of persons or things arranged one behind another (distinguished from rank ). |
| 5. | Military.
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| 6. | one of the vertical lines of squares on a chessboard. |
| 7. | a list or roll. |
| 8. | a string or wire on which papers are strung for preservation and reference. |
| 9. | to place in a file. |
| 10. | to arrange (papers, records, etc.) in convenient order for storage or reference. |
| 11. | Journalism.
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| 12. | to march in a file or line, one after another, as soldiers: The parade filed past endlessly. |
| 13. | to make application: to file for a civil-service job. |
| 14. | on file, arranged in order for convenient reference; in a file: The names are on file in the office. |

| file (fīl) Pronunciation Key
A collection of related data or program records stored as a unit with a single name. Files are the basic units that a computer works with in storing and retrieving data. |
on file
In or as if in a record for easy reference. For example, There's no job open right now, but we'll keep your résumé on file. The use of file in the sense of "a collection of papers stored for ready reference" dates from the early 1600s.