English Reference
noun

extent

n.
US /ɪkˈstɛnt/ UK /ɛkstˈɛnt/ ex·tent UK spelling extent's, extent's

  1. 01 B2 Upper Intermediate

    the amount, size, or importance of something.

    the degree to which something exists, happens, or is true.

    Simple

    The extent of the damage was only clear after the storm had passed.

    In context

    The full extent of the corruption within the department only became apparent after a multi-year investigation by the federal authorities.

    Usage

    Often used in the phrase 'to some extent' or 'to a certain extent'.

  2. 02 B2 Upper Intermediate

    the physical area or length that something covers.

    the physical space, area, or volume over which something extends.

    Simple

    From the mountain top, you can see the full extent of the forest.

    In context

    The vast extent of the desert made navigation nearly impossible for the early explorers who lacked modern mapping tools.

  3. 03 C2 Proficiency Technical Computing

    a continuous section of storage space on a computer disk.

    a contiguous area of storage in a file system, reserved for a particular file.

    Simple

    The system failed because it could not find a large enough extent for the new file.

    In context

    Fragmented files often consist of multiple extents scattered across the physical disk, which can significantly degrade read performance.

    Usage

    Used as a countable noun in technical documentation.

  4. 04 C2 Proficiency FormalTechnical Law

    a legal document that allows the government to take a person's property to pay back debts.

    a writ allowing for the valuation and seizure of a debtor's property to satisfy a debt to the state.

    Simple

    The court issued an extent against the merchant's warehouse to recover the unpaid taxes.

    In context

    The historical use of the writ of extent allowed the Crown to bypass ordinary civil proceedings to secure immediate payment from defaulting contractors.

Usage extent of the damage · affect extent · assess extent

Most people care about all of those things, to different extents.

The Conversation· 20 Aug 2026

To an extent, that simplifies matters, given that DNA only uses four “letters,” A, T, C, and G.

Ars Technica· 6 Aug 2026

From Middle English extente, from Anglo-Norman extente and Old French estente (“valuation of land, stretch of land”), from estendre, extendre (“extend”) (or from Latin extentus), from Latin extendere (See extend.)

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

This entry
Origin Latin extendere
Level B2 · Upper Intermediate
Frequency Common
Updated