name
earth
urth
name
1
The planet we live on, third from the Sun.
"Earth is the only known planet with life."
"The satellite sends images of Earth back every hour."
noun
1
Soil or ground; loose dirt.
"The gardener turned over the earth before planting seeds."
"A layer of dark earth covered the old ruins."
2
The ground or land, as opposed to sky or sea.
"The plane finally touched down on solid earth."
3
A connection to the ground in an electrical circuit (British English for "ground").
"Make sure the wire is properly connected to earth before switching it on."
verb
1
To connect something electrically to the ground.
"The appliance must be earthed to prevent electric shock."
How to Use Earth
Learner’s notesIn plain EnglishEither the planet we live on, or plain dirt/ground, or (in UK electrics) a safety wire to the ground.
UK vs US
British English says "earth" for the electrical safety connection; American English says "ground."
Common pairings
planet Earth
down to earth
earth wire
Word Forms
earthed past tense, earths plural, Earths plural, earths singular
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_____ is the only known planet with life.
Etymology
From Old English eorþe, an ancient Germanic word for soil, ground, and the world itself.