Thesaurus

Reference work for synonyms

A thesaurus, sometimes called a synonym dictionary or dictionary of synonyms, is a reference work which arranges words by their meanings, sometimes as a hierarchy of broader and narrower terms, sometimes simply as lists of synonyms and antonyms. They are often used by writers to help find the best word to express an idea:...to find the word, or words, by which [an] idea may be most fitly and aptly expressed

This keyword could refer to multiple things. Here are some suggestions: