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 inedible central part of a fruit (“an apple core”).

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

If you're looking for the most essential part or the very center of something, you're looking for its core. Like the inedible middle of an apple or your inner circle of core friends.

What does the word core mean? There are 36 meanings listed in OED's entry for the word core , four of which are labelled obsolete. See ‘Meaning & use’ for definitions, usage, and quotation evidence.

CORE definition: the central part of certain fleshy fruits, such as the apple or pear , consisting of the... | Meaning, pronunciation, translations and examples

The core of a fruit is the central part of it that contains seeds. Someone threw an apple core. The core of an object, building, or city is the central part of it. ...the Earth's core. If you core a fruit, you remove its core. ...machines for peeling and coring apples.

Definition of core noun from the Oxford Advanced Learner's Dictionary. the most important or central part of something. This report goes to the core of the argument. Dutch paintings form the core of the collection. at the core of something Concern for …

CORE meaning: 1 : the central part of a fruit (such as an apple) that contains the seeds; 2 : the central part of something