noun🔗ShareA publication, usually in the form of a book, that provides synonyms (and sometimes antonyms) for the words of a given language.""Roget" is the leading brand name for a print English thesaurus that lists words under general concepts rather than just close synonyms."languageliteraturewritingwordeducationChat with AIVocabulary GamePractice Reading
noun🔗ShareA dictionary or encyclopedia."The student used the thesaurus to find a better word for "happy" in her essay. "languagelinguisticsliteraturewritingeducationChat with AIVocabulary GamePractice Reading
noun🔗ShareA hierarchy of subject headings — canonic titles of themes and topics, the titles serving as search keys."The library's thesaurus organizes information about family history into categories like "genealogy," "family trees," and "historical records," making it easier to find related books. "languagewritingliteraturecommunicationwordeducationinfoChat with AIVocabulary GamePractice Reading