n.

1. （常大写）地球[the S]
   How far is the Earth from the sun?

   地球离太阳多远？

2. 陆地；地面，地上[U]
   The balloon burst and fell to earth.

   气球炸了，落到地上。

3. 土，泥[U]
   The farmer examined a handful of earth.

   那个农夫察看了一把泥土。

4. 【英】【电】（接）地；地线[C]
5. 【英】（狐等的）穴[C]
6. 【化】金属氧化物[C]
7. （地球上的）全人类[the S]
   The whole earth rejoiced.

   全人类欢欣鼓舞。

8. 尘世，人间[U]
   That's a paradise on earth.

   那是人间天堂。

vt.

1. 【英】【电】把（电器）接地
   Is your TV set earthed?

   你的电视机接地吗？

2. 用土掩盖（植物或根部）[（+up）]
   He carefully earthed up the roots of the newly-planted tree.

   他仔细地在新栽的树的根部培上土。

n.

1. (also Earth) the planet on which we live, the third planet of the solar system in order of distance from the sun.
2. the substance of the land surface; soil.
   ▸one of the four elements in ancient and medieval philosophy and in astrology.
   ▸used in names of stable, dense, non-volatile inorganic substances, e.g. fuller's earth.
   ▸literary the substance of the human body:

   earth to earth, ashes to ashes.
3. Brit. electrical connection to the ground, regarded as having zero electrical potential.
4. the underground lair of a badger or fox.

v.

1. Brit. connect (an electrical device) to earth.
2. Hunting  (of a fox) run to its earth.