English Reference
noun

metadata

n.

  1. 01 C1 Advanced Technical Computing

    information that describes other data, helping you understand what it is or where it came from.

    data that provides information about other data, serving as an informative label for identification or discovery.

    Simple

    The library uses metadata to help people find books by their author or subject.

    In context

    Effective metadata management is essential for large-scale digital archives to ensure that assets remain searchable across different platforms and decades.

    Usage

    Usually treated as an uncountable noun in general contexts, though 'metadatum' exists as a rare singular form.

  2. 02 C1 Advanced Technical Computing

    hidden information inside a digital file, like the date it was created or the type of camera used.

    structured information embedded within or associated with a file, such as timestamps, authorship, and technical specifications.

    Simple

    When you upload a photo, the metadata often shows exactly where you took it.

    In context

    Privacy advocates warn that metadata attached to document files can inadvertently leak sensitive information about a company's internal network structure.

Most biodiversity recording relies on volunteers and local teams, which, although invaluable, results in uneven and delayed data that often lack metadata.

Phys.org· 17 Aug 2026

This finding was based on a citation analysis of large sets of metadata concerning scientific papers and patents.

Phys.org· 12 Aug 2026

Formed from the Greek prefix meta-, meaning beyond or transcending, and the Latin plural noun data. The term was coined in 1969 by Jack E. Myers.

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

This entry
Level C1 · Advanced
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