earth · noun /ɜrθ/Full view
Nouns: earth
Adjectives: earthy, earthly, unearthly
Verbs: unearth
earth (PLANET)
B1 no plural the planet that we live on
Dictionary examples:

The Earth takes approximately 365 days to go round the Sun.

Swimming in a pool is the best place on Earth to be on a hot day like this.

Learner example:

I like it because it is the best football on Earth! (Key English Test; A2; Turkish)

B2 U soil or ground
Dictionary example:

The ploughed earth looked rich and dark.

Learner example:

At the same time, the two sisters began to throw earth and stones. (First Certificate in English; B2; Italian)

how/what/why, etc. on earth?
C1 used when you are extremely surprised, confused, or angry about something
Dictionary example:

Why on earth didn't you tell me before?

Learner example:

How on earth can you have a coach without a toilet? (Certificate in Advanced English; C1; Swedish)

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