Thesaurus (noun) Definition, Meaning & Examples

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noun, plural the·sau·rus·es, the·sau·ri [-sawr-ahy]. /-ˈsɔr aɪ/.
  1. a dictionary of synonyms and antonyms, such as the online Thesaurus.com.
  2. any dictionary, encyclopedia, or other comprehensive reference book.
  3. a storehouse, repository, or treasury.
  4. Computers.
    • an index to information stored in a computer, consisting of a comprehensive list of subjects concerning which information may be retrieved by using the proper key terms.
    • a dictionary of synonyms and antonyms stored in memory for use in word processing.
noun plural -ruses or -ri (-raɪ)
  1. a book containing systematized lists of synonyms and related words
  2. a dictionary of selected words or topics
  3. a treasury
Thesaurus (noun) Definition, Meaning & Examples

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