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vocabulary

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What are red words?

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 British English pronunciation: vocabulary /vəʊˈkæbjʊləri/ 
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singularvocabulary
pluralvocabularies
  1. 1
    [countable/uncountable] all the words that a person knows
    a wide vocabulary (=knowledge of a large number of words):

    He has a wide vocabulary and loves crosswords.

    a limited vocabulary:

    Her grammar isn't bad, but she has a limited vocabulary.

    expand your vocabulary (=learn new words):

    An average child will quickly expand his or her vocabulary.

    1. a.
      [countable/uncountable] all the words in a particular language

      Technical developments give us a lot of new vocabulary.

      enter the vocabulary:

      The word 'think tank' had entered the vocabulary by the 1960s.

    2. b.
      the words used for talking about a particular subject
      technical/specialized vocabulary:

      Try to avoid using too much technical vocabulary.

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