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English definition of “core”

core

noun [C] (CENTER)   /kɔr, koʊr/
the center or most important part of something: Farmers formed the core of traditional party support . Safety concerns are at the core of the new federal policies . earth science The core of the earth is its center , made up of a liquid inner core and a solid outer core.
(Definition of core noun (CENTER) from the Cambridge Academic Content Dictionary © Cambridge University Press)
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