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90% of the time, speakers of English use just 7,500 words in speech and writing. These words appear in red, and are graded with stars. One-star words are frequent, two-star words are more frequent, and three-star words are the most frequent.



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noun [countable] core pronunciation in British English /kɔː(r)/ 
Word Forms
  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.

    Synonyms and related words for this sense of core
    1. b.
      the central part of a planet

      the Earth's core

      Synonyms and related words for this sense of core


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