16th century, from Latin thēsaurus, from Old Greek θησαυρός; its current English usage/meaning was established soon after the publication of Peter Roget's Thesaurus of English Words and Phrases in 1852. Pronunciation
  • IPA: /θɪˈsɔːɹəs/

thesaurus (plural thesauri)

  1. A 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.
  2. (archaic) A dictionary or encyclopedia.
  3. (information science) A hierarchy of subject headings — canonic titles of themes and topics, the titles serving as search keys.
Synonyms Translations
  • French: dictionnaire des synonymes, thésaurus, dictionnaire de notions, dictionnaire par ordre de matières
  • German: Thesaurus, Begriffswörterbuch, Sachgruppenwörterbuch
  • Italian: dizionario dei sinonimi, tesoro
  • Portuguese: dicionário de sinónimos (Portugal), dicionário de sinônimos (Brazil), tesauro, thesaurus
  • Russian: теза́урус
  • Spanish: diccionario de sinónimos
  • Russian: предме́тный указа́тель

This text is extracted from the Wiktionary and it is available under the CC BY-SA 3.0 license | Terms and conditions | Privacy policy 0.007
Offline English dictionary