noun
1. (often initial capital letter) the planet third in order from the sun, having an equatorial diameter of 12,755 km and a polar diameter of 12,714 km, a mean distance from the sun of 149.6 million km, and a period of revolution of 365.26 days, and having one satellite.
2. the inhabitants of this planet, esp. human inhabitants: the whole earth rejoiced.
3. this planet as the habitation of humans, often in contrast to heaven and hell: to create hell on earth.
4. the surface of this planet: to fall to earth.
5. the solid matter of this planet; dry land; ground.
6. soil and dirt, as distinguished from rock and sandl the softer part of the land.
7. the hole of a burrowing animal; lair.
8. chemistry - any of several metallic oxides that are difficult to reduce, as alumina, zirconia, and yttria.
9. also called earth colour. fine arts - any of various pigments consisting chiefly of iron oxides and tending toward brown in hue.
10. chiefly british electronics - a ground.
11. archaic - a land or country.
verb
12. chiefly british electtronics- to ground.
idioms
13. to move heaven and earth
14. on earth, in the world: where on earth have you been?
15. run to earth
a. hunting - to chase (an animal) into its hole or burrow: to run a fox to earth.
b. to search out; track down: they ran the fugitive to earth in algiers.
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