copper is on the Basic English 850 List.
cook - copper - copy

nickel 29 zinc

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Pronunciation change

Noun change

Singular
copper

Plural
coppers

  1. (uncountable) Copper is a metal that is a red-brown colour. Sometimes coins of small value are made from copper. The symbol for copper is Cu with an atomic number of 29.
    Water comes into our house through copper pipes.
  2. (countable) A copper is a penny, a coin of small value made of copper.
    Could you give me a copper? I have almost enough money to buy that thing.
  3. (countable) (slang) (used only in the United Kingdom) A copper is a police officer.
    The copper arrested him for stealing.

Adjective change

Positive
copper

Comparative
none

Superlative
none

  1. Made of copper.
    The copper statue has turned green.
  2. Having the reddish-brown colour/color of copper
    The copper couch will look really nice with that wallpaper.