English Reference
noun

transparency

n.
US /tɹænˈspɛɹənsi/ UK /tɹænspˈæɹənsi/ trans·paren·cy UK spelling transparencies, transparency's

  1. 01 B2 Upper Intermediate Science

    the quality of being clear so that you can see through it.

    the physical property of allowing light to pass through a material so that objects behind it can be distinctly seen.

    Simple

    The water in the mountain lake was famous for its perfect transparency.

    In context

    The glass manufacturer achieved a level of transparency that made the display cases almost invisible to the museum visitors.

    clarityclearnesstranslucence
  2. 02 B2 Upper Intermediate

    the quality of being open and honest, without hiding secrets.

    the characteristic of being easy to perceive or detect; in a social context, the lack of hidden agendas or conditions.

    Simple

    The public demanded more transparency from the government about how taxes are spent.

    In context

    The new CEO promised radical transparency regarding the company's environmental impact and supply chain ethics.

  3. 03 C1 Advanced Technical Photography

    a plastic sheet or film with a picture on it that you show using a projector.

    a positive photographic image on a transparent base, viewed by transmitted light or via a projector.

    Simple

    The professor used a transparency on the overhead projector to show the map.

    In context

    Before digital presentations became the norm, photographers would often submit large-format transparencies to magazines for high-quality reproduction.

    slidediapositive
  4. 04 C2 Proficiency Technical Computing

    when a compressed file sounds or looks exactly like the original.

    the state where a lossy compression codec produces output that is perceptually indistinguishable from the original uncompressed source.

    Simple

    This audio format offers transparency even at lower bitrates.

    In context

    The engineer argued that the new algorithm achieved full transparency, meaning even trained listeners could not identify the compressed file in a blind test.

The changes are being introduced to give users "more transparency" about what they're hearing, Spotify says.

BBC News· 12 Aug 2026

It had been testing models by both OpenAI and Anthropic, and found they too tried to carry out cyber-attacks - calling for "scrutiny, transparency, and action".

BBC News· 6 Aug 2026

Borrowed from Medieval Latin trānspārentia, equivalent to transparent + -cy.

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

This entry
Level C1 · Advanced
Frequency Frequent
Updated