Definition of THESAURUS

thesaurus

Meanings

Plural: thesauri, thesauruses

Noun

  • a book containing a classified list of synonyms
  • A publication that provides synonyms (and sometimes antonyms and other semantic relations) for the words of a given language.
  • A dictionary or encyclopedia.
  • A hierarchy of subject headings: canonical titles of themes and topics, the titles serving as search keys.

Origin / Etymology

16th century, borrowed from Latin thēsaurus, from Ancient Greek θησαυρός (thēsaurós, “storehouse, treasure”); its current English usage/meaning was established soon after the publication of Peter Roget's Thesaurus of English Words and Phrases in 1852. Doublet of treasure.

Synonyms

synonym finder, synonymicon

Scrabble Score: 12

thesaurus is a valid Scrabble (US) TWL word
thesaurus is a valid Scrabble Word in Merriam-Webster MW Dictionary
thesaurus is a valid Scrabble Word in International Collins CSW Dictionary

Words With Friends Score: 13

thesaurus is a valid Words With Friends word