Meaning of “earth” - Learner’s Dictionary

earth

noun us uk /ɜːθ/
PLANET [ no plural ] also the Earth

B1 the planet that we live on

Examples

SUBSTANCE [ U ]

B2 soil or ground:

a mound of earth
ELECTRICAL WIRE [ C ] UK US ground

a wire that makes electrical equipment safer

cost/charge, etc the earth UK informal

(Definition of “earth” from the Cambridge Learner’s Dictionary © Cambridge University Press)