vocabulary - definition and synonyms

 
noun 

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/vəʊˈkæbjʊləri/
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 wordthink 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.

    3. c.
      all the words used or produced by a computer program, game, or talking toy

      The program has a vocabulary of 2,500 words.

  2. 2
    [countable] a list of words and their meanings, especially in a book for learning a foreign language