thesaurus
Pronunciation:
/θɪˈsɔːɹəs/noun
Definitions
A publication, usually in the form of a book, that provides synonyms (and sometimes antonyms) for the words of a given language.
Example: "Roget" is the leading brand name for a print English thesaurus that lists words under general concepts rather than just close synonyms.
A dictionary or encyclopedia.
A hierarchy of subject headings — canonic titles of themes and topics, the titles serving as search keys.