Copper is a type of metal that looks brownish-red. People use it to make wires, coins, and pipes. It is a natural material found in the earth.
Copper is used to make electrical wires.
The coin is made of copper metal.
In some English-speaking countries, people sometimes call police officers 'coppers'. It is a casual way to say the police.
The copper caught the thief quickly.
Coppers work to keep the city safe.
Copper is also a name for a color like the metal. It is a reddish-brown color you see in hair, paint, or objects.
Her hair is the color of copper.
The room has copper colored walls.
Copper is a chemical element found on the periodic table with the symbol Cu. It is important in science and used in many industries.
Copper has the atomic number twenty-nine.
The element copper is good at conducting heat.
To copper something means to cover it with a thin layer of copper. This is often done to protect or decorate objects.
They copper the wires to prevent rust.
The artist coppered the statue slowly.
In informal British English, 'copper' can mean money or coins, especially small change. People use it casually when talking about paying.
I don’t have enough copper for lunch.
He found some copper on the floor.
