(often initial capital letter) the planet third in order from the sun, having an equatorial diameter of 7926 miles (12,755 km) and a polar diameter of 7900 miles (12,714 km), a mean distance from the sun of 92.9 million miles (149.6 million km), and a period of revolution of 365.26 days, and having one satellite.
the inhabitants of this planet, especially the human inhabitants: The whole earth rejoiced.
this planet as the habitation of humans, often in contrast to heaven and hell: to create a hell on earth.
the surface of this planet: to fall to earth.
the solid matter of this planet; dry land; ground.