file

¹ American  

[fahyl] / faɪl /

noun

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 (rank ).

5. Military.

   1. a person in front of or behind another in a military formation.

   2. one step on a promotion list.

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.

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verb (used with object)

filed, filing

1. to place in a file.

2. to arrange (papers, records, etc.) in convenient order for storage or reference.

   Synonyms:

   index, catalog, label, classify, categorize, list

3. Journalism.

   1. to arrange (copy) in the proper order for transmittal by wire.

   2. to transmit (copy), as by wire or telephone.

      He filed copy from Madrid all through the war.

verb (used without object)

filed, filing

1. to march in a file or line, one after another, as soldiers.

   The parade filed past endlessly.

2. to make application.

   to file for a civil-service job.

idioms

1. on file, arranged in order for convenient reference; in a file.

   The names are on file in the office.

file ² American  

[fahyl] / faɪl /

noun

1. 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.

2. a small, similar tool for trimming and cleaning fingernails; nail file.

3. British Slang. a cunning, shrewd, or artful person.

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verb (used with object)

filed, filing

1. to reduce, smooth, or remove with or as if with a file.

file ³ American  

[fahyl] / faɪl /

verb (used with object)

Archaic.

filed, filing

1. to defile; corrupt.

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filé ⁴ American  

[fi-ley, fee-ley] / fɪˈleɪ, ˈfi leɪ /

noun

New Orleans Cooking.

1. 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.

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file ¹ British  

/ faɪl /

noun

1. 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

2. rare a cunning or deceitful person

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verb

1. (tr) to shape or smooth (a surface) with a file

file ² British  

/ faɪl /

verb

1. obsolete (tr) to pollute or defile

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file ³ British  

/ faɪl /

noun

1. a folder, box, etc, used to keep documents or other items in order

2. the documents, etc, kept in this way

3. documents or information about a specific subject, person, etc

   we have a file on every known thief

4. an orderly line or row

5. a line of people in marching formation, one behind another Compare rank 1

6. any of the eight vertical rows of squares on a chessboard

7. computing a named collection of information, in the form of text, programs, graphics, etc, held on a permanent storage device such as a magnetic disk

8. obsolete a list or catalogue

9. a group of problems or responsibilities, esp in government, associated with a particular topic

   the environment file

10. recorded or catalogued for reference, as in a file

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verb

1. to place (a document, letter, etc) in a file

2. (tr) to put on record, esp to place (a legal document) on public or official record; register

3. (tr) to bring (a suit, esp a divorce suit) in a court of law

4. (tr) to submit (copy) to a newspaper or news agency

5. (intr) to march or walk in a file or files

   the ants filed down the hill

file Scientific  

/ fīl /

1. 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.

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file More Idioms  

1. see in single file; on file; rank and file.

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Other Word Forms

• fileable adjective
• filer noun
• nonfiler noun

Etymology

Origin of file¹

First recorded in 1425–75; late Middle English verb filen, from Middle French filer “to string documents on a thread or wire,” Old French: “to wind or spin thread,” from Vulgar Latin fīlāre “to wind or spin thread,” from the Latin noun fīlum “a string, thread”; the English noun is derived from the verb

Origin of file²

First recorded before 900; Middle English; Old English fīl, fēol; cognate with German Feile; akin to Slavic (Polish) piła “saw”

Origin of file³

First recorded before 1000; Middle English, Old English fȳlan “to befoul, defile,” derivative of fūl foul

Origin of filé⁴

1800–10, < Louisiana French; literally, twisted, ropy, stringy (perhaps originally applied to dishes thickened with the powder), past participle of French filer; file ¹

Explanation

To file is to submit an application or a record to some official authority, like a court, police station, or city hall. You might file a complaint against your neighbor after he shovels the snow from his driveway into yours. People file for divorce, file for bankruptcy, and file charges against criminals. You can also file a receipt or a record at home, by putting it in a file folder and then sliding the folder into a file cabinet. When you stand "single file," you're in a line or queue, and if the group moves a few steps, you can say it files forward.

Example Sentences

Wednesday is the deadline to file tax returns and pay any taxes due for 2025.

From Barron's • Apr. 11, 2026

They were said to have narrowed some but not all of the gaps, at least on the nuclear file, where Iran offered new concessions including the dilution of its highly enriched uranium.

From BBC • Apr. 10, 2026

You just file two separate pieces of paper.

From MarketWatch • Apr. 9, 2026

In the social-media cases, the number of people who could potentially file suit is broad.

From The Wall Street Journal • Apr. 9, 2026

“I came across the file of a twelve-year-old girl who’d hacked into a government agency, and why? To bring justice.”

From "City Spies" by James Ponti

Related Words

• book
• case
• data
• directory
• dossier
• folder
• information
• list
• notebook
• record