layer - definition and synonyms

noun [countable] 

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  1. 1
    an amount or sheet of a substance that covers a surface or that lies between two things or two other substances

    Glue the layers together and let them dry.

    layer of:

    Finish with a layer of mashed potato and grated cheese.

    There was a thin layer of ice on the pavements.

  2. 2
    a level or rank within an organization or system
    layer of:

    another layer of bureaucracy