B2noun1K

Core

UK /["/kɔː(r)/"]/US /["/kɔːr/"]/

Definition

the most important or central part of something

In simple words: The main part or center of something.

Examples

  • At the core of the argument is a fundamental disagreement about values.
  • The Earth has a solid inner core made of iron and nickel.
  • To improve your fitness, focus on strengthening your core muscles.
  • The movie's core message revolves around the importance of friendship.
  • An apple's core is often discarded but contains seeds for new trees.

Usage notes

Used to describe the most important part of something, such as a core belief or the core of an apple. Avoid using in contexts where a more specific word is required.

Grammar pattern

standalone noun

Memory hint

Think of the 'core' of an apple — it’s the center part.

Collocations

  • hollow
  • dense
  • solid
  • form
  • make up
  • surround
  • at something’s core
  • to the core
  • the earth’s core
  • hollow
  • dense
  • solid
  • form
  • make up
  • surround
  • at something’s core
  • to the core
  • the earth’s core

Synonyms

  • center
  • nucleus
  • essence
  • heart
  • basis

Antonyms

  • periphery
  • outer layer

Common mistakes

  • Confused with 'core' in the context of exercise (e.g., core muscles vs. core values).
  • Using 'core' as a verb instead of a noun.
  • Mixing up 'core' with 'corect' as in something accurate.