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English definition of “thesaurus”

thesaurus

noun [C] uk   /θɪˈsɔː.rəs/ us    /-ˈsɔːr.əs/ (plural thesauruses or formal thesauri   /θɪˈsɔː.raɪ/    /-ˈsɔːr.aɪ/)
a type of dictionary in which words with similar meanings are arranged in groups
(Definition of thesaurus from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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