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English definition of “vocabulary”

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vocabulary

noun uk   /vəˈkæb.jʊ.lər.i/ us    /voʊˈkæb.jə.ler-/
A2 [C] all the words known and used by a particular person: a wide/limited vocabulary By the age of two a child will have a vocabulary of about two hundred words.C1 [C or U] all the words that exist in a particular language or subject: Every week our French teacher gives us a list of vocabulary (= words) to learn. Computing, like any subject, has its own vocabulary.
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(Definition of vocabulary from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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