Definitions of Earth:

• noun:   the abode of mortals (as contrasted with heaven or hell)

  Example: "It was hell on earth"

• noun:   the 3rd planet from the sun; the planet on which we live

  Example: "The Earth moves around the sun"

• noun:   the loose soft material that makes up a large part of the land surface

  Example: "They dug into the earth outside the church"

• noun:   once thought to be one of four elements composing the universe (Empedocles)
• noun:   a connection between an electrical device and the earth (which is a zero voltage)
• noun:   the solid part of the earth's surface

  Example: "The earth shook for several minutes"

• noun:   the concerns of the world as distinguished from heaven and the afterlife
• verb:   hide in the earth like a hunted animal
• verb:   connect to the earth

  Example: "Earth the circuit"