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Core can be a noun, verb, or adjective, but is most often used as a noun to refer to the central or most important part of something (“the core of the issue,” “the Earth’s core”) or to the usually …

CORE meaning: 1. the basic and most important part of something: 2. the hard central part of some fruits, such…. Learn more.

The core of something such as a problem or an issue is the part of it that has to be understood or accepted before the whole thing can be understood or dealt with.

Of basic importance; essential: "Virtually all cultures around the world use the word heart to describe anything that is core, central, or foundational" (Robert A. Emmons).

Definition of core noun in Oxford Advanced American Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

Aug 10, 2025 · "Core" represents centrality, importance, and functionality across various domains. Whether describing a fruit, a principle, or a technical component, its meanings emphasize its …

the central part of the earth:[singular] the pressure at the earth's core. the most important or essential part of anything: the core of the new curriculum for business majors.

an area or point that is an equal distance from all points along an edge or outer surface the mountain rises from ground that is almost precisely at the island's core

CORE definition: 1. the most important part of a system or principle: 2. the hard, central part of certain fruits…. Learn more.