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lexicon

Pronunciation: /ˈlɛksɪk(ə)n/
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Definition of lexicon

noun

  • the vocabulary of a person, language, or branch of knowledge:the size of the English lexicon
  • a dictionary, especially of Greek, Hebrew, Syriac, or Arabic:a Greek-Latin lexicon

Origin:

early 17th century: modern Latin, from Greek lexikon (biblion) '(book) of words', from lexis 'word', from legein 'speak'

lexicon in other Oxford dictionaries

Definition of lexicon in the US English dictionary

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