thesaurus
the.sau.rus \thi-'so.r-*s\ \-'so.(*)r-.i-, -.e-\ \-'so.r-*-s*z\ n or the.sau.ri or the.sau.rus.es [NL, fr. L, treasure, collection, fr. Gk the-sauros] pl 1: a book of words or of information about a particular field or set of con cepts; specif : a dictionary of synonyms 2: TREASURY, STOREHOUSE