electricity[countable usually singular]British English a wire that makes a piece of electrical equipment safe by connecting it with the ground [= ground American English]
My electrical oven was giving shocks so I had to earth it.
If you have to walk on a ground where you face risk of electrocution, then hold something that helps earth your body.
a large international meeting held in Rio de Janeiro in Brazil in 1992, at which the leaders of the countries of the United Nations discussed ways of protecting the environment and preserving the Earth's BIODIVERSITY (= all the different plants and animals on the Earth) . It is sometimes also called the Rio Summit .
an organization which believes that the Earth is flat and that science cannot be trusted. People sometimes mention its name when they are talking about someone whose ideas are impractical or unscientific.