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sun - definition and synonyms

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noun     sun pronunciation in British English
Word Forms
the Sun
By NASA/SDO (AIA) [Public domain], via Wikimedia Commons
By Arivumathi (Own work) [CC BY-SA 3.0 License], via Wikimedia Commons
By Till Krech from Berlin, Germany [CC BY 2.0 License], via Wikimedia Commons
By Tom Harpel from Seattle, Washington, United States (Flickr) [CC BY 2.0 License], via Wikimedia Commons
  1. 1

    the Sun


    the sun

    the star in the sky that provides light and warmth to the Earth
    1. a.
      [singular/uncountable] the light and warmth that you feel from the sun

      We could feel the hot sun on our backs.

      I can’t see a thing. The sun’s in my eyes.

      The windows facing south get a lot of sun.

      in the sun:

      Miriam was sitting in the sun reading a book.

  2. 2
    [countable] any very bright star, especially one that a planet travels round


a lifestyle focussing on simple pleasures such as comfort and cosiness in the home, and spending time with friends and family

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a form of location that involves the underwater detonation of a bomb which causes sound waves that are picked up by ships

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