thesaurus noun - Definition, pictures, pronunciation and usage notes | Oxford Advanced American Dictionary at OxfordLearnersDictionaries.com

Definition of thesaurus noun from the Oxford Advanced American Dictionary

thesaurus

noun

NAmE//θɪˈsɔrəs//

(pl. thesauri

NAmE//θɪˈsɔraɪ//

or thesauruses

NAmE//θɪˈsɔrəsəz//

)

a book that lists words in groups that have similar meanings

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