thesaurus
noun/θɪˈsɔːrəs/
/θɪˈsɔːrəs/
(plural thesauri
/θɪˈsɔːraɪ/
/θɪˈsɔːraɪ/
, thesauruses /θɪˈsɔːrəsɪz/
/θɪˈsɔːrəsɪz/
)- a book that lists words in groups that have similar meanings
- I couldn’t find the word in the thesaurus.
Word Originlate 16th cent.: via Latin from Greek thēsauros ‘storehouse, treasure’. The original sense ‘dictionary or encyclopedia’ was narrowed to the current meaning by the publication of Roget's Thesaurus of English Words and Phrases (1852).Want to learn more?
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thesaurus