core
Pronunciation
Noun
B1 Intermediate
Quick answer
The central or most important part of something, or the innermost layer of the earth.
Synonyms and antonyms
Test yourself
Which word fits the gap? "The earth's _____ is made mostly of iron and nickel."
Answer: core
In your own words, what does "core" mean?
The central or most important part of something, or the innermost layer of the earth.
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