# filename

/ˈfaɪɫˌneɪm/ (US) · CEFR B1 · Noun

Source: https://englishreference.com/word/filename
Updated: 2026-10-14

## Definition

the name you give to a file on a computer so you can find and open it later.

For teachers: a string of characters that identifies a file within a file system, often including an extension that indicates its format.

## Examples

- I save the photo with a clear filename.
- She changes the filename to 'report-final.docx' so her team can find the latest version quickly.
- The archive preserves original filenames because even small changes can break links and make older documents hard to trace.

---

From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.