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copper - definition and synonyms

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noun     copper pronunciation in British English
Word Forms
  1. 1
    [uncountable] a chemical element that is a red-brown metal. Its symbol is Cu and it is used especially for making wire or pipes.

    a copper pipe/pan/kettle

    Her hair was the colour of copper.

    Synonyms and related words
  2. 2
    [countable] informal old-fashioned a police officer
  3. 3
    [countable] old-fashioned a coin of low value made of copper or bronze


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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