Your request was thsaurus which is probably a typo from thesaurus.
thsaurus -
Traditional English :: thesaurus
thsaurus - n. (pl. thesauri or thesauruses) 1 a a collection of concepts or words arranged according to sense. b US a book of synonyms and antonyms. 2 a dictionary or encyclopaedia. [L f. Gk thesauros treasure]