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noun surface pronunciation in American English /ˈsɜrfəs/ 
Word Forms
  1. 1
    [countable] the top layer or outside part of something

    a smooth/rough/hard surface

    Road surfaces are slick from the icy rain.

    Wipe the surface with a damp cloth.

    Synonyms and related words for this sense of surface
    1. a.
      the top layer of water or land

      We saw fish swimming just under the surface of the water.

      A farmer was spreading fertilizer over the surface of the soil.

      the surface of Mars

      Synonyms and related words for this sense of surface
  2. 2
    [countable] a flat area of a desk, table, etc. that you use for working on

    Papers and books covered the surface of the desk.

    All counter surfaces in the kitchen should be carefully cleaned.

    Synonyms and related words for this sense of surface
    1. a.
      a flat area used for playing sports, or the material used for making this area

      Many tennis players dislike the grass surface at Wimbledon.

      a new playing surface that is expected to replace Astroturf

  3. 3
    [singular] the way that someone or something looks or seems while their true feeling or character remains hidden

    Underneath his cool surface was a growing sense of insecurity.

    beneath the surface:

    Hostility lies beneath the surface of calm in the region.

    on the surface:

    On the surface, they looked like a happily married couple.

    Synonyms and related words for this sense of surface
    1. a.
      the aspect of someone's inner feeling that they show in their behavior or appearance

      He could feel his frustration and rage rising to the surface.

  4. 4
    [countable] math one of the sides of an object

    A cube has six surfaces.

    Synonyms and related words for this sense of surface


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