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core - definition and synonyms


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noun [countable] core pronunciation in British English /kɔː(r)/
Word Forms
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  1. 1
    the most important or most basic part of something
    core of: These 2,500 words form the core of the language.
    at the core of something: Financial instability lies at the core of the institute’s problems.
    1. a.
      the members of a group who do the most work, or who support it most strongly
      core of: Females comprise the core of the monkeys’ social unit.
  2. 2
    the part inside an object that is nearest its centre
    The ball has a core of hard rubber.
    core of: These six countries are the geographical core of Western Europe.
    1. b.
      the central part of a planet
      the Earth’s core


a fashion trend in which people intentionally wear ordinary, inexpensive, widely-available clothing

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a flower or small bunch of flowers worn on the lapel of a jacket on special occasions

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