[n] a connection between an electrical device and the earth (which is a zero voltage)
[n] the concerns of the world as distinguished from heaven and the afterlife; "they consider the church to be independent of the world"
[n] the abode of mortals (as contrasted with heaven or hell); "it was hell on earth"
[n] the 3rd planet from the sun; the planet on which we live; "the Earth moves around the sun"; "he sailed around the world"
[n] the solid part of the earth's surface; "the plane turned away from the sea and moved back over land"; "the earth shook for several minutes"; "he dropped the logs on the ground"
[n] the loose soft material that makes up a large part of the land surface; "they dug into the earth outside the church"
[n] (archaic) once thought to be one of four elements composing the universe (Empedocles)
[v] connect to the earth, as of a circuit
[v] hide in the earth, as of a hunted fox