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synonym dictionary

See more synonyms on Thesaurus.com
  1. a dictionary such as Thesaurus.com that, for each entry word, lists other words with the same or nearly the same meanings, as well as antonyms, words with the opposite meaning. Synonym dictionaries that are published as books are usually organized alphabetically. In contrast, a print thesaurus is often organized by categories of words. An online thesaurus provides immediate, direct access to the search word with its synonyms and antonyms.
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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018