# eraser

/iˈɹeɪsɝ/ (US) · /ɪɹˈeɪzɐ/ (UK) · CEFR A1 · Noun

Source: https://englishreference.com/word/eraser
Updated: 2026-05-18

## Definition

a tool used to remove marks from paper, like a pencil mark. In computing, it can also be a program or tool that deletes files or data.

For teachers: a tool used to remove marks from a surface, such as a pencil mark from paper. In a computing context, it refers to a utility or software function designed to delete data or files from a system.

## Examples

- I need a new eraser for my pencil.
- The system administrator used a secure eraser to delete the sensitive files from the hard drive.
- While a physical eraser can only remove the graphite from the surface, a digital eraser must overwrite the data to prevent recovery by forensic tools.

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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.