thesaurus

the·sau·rus

noun \thi-ˈsȯr-əs\

plural the·sau·ri\-ˈsȯr-ˌī, -ˌē\ or the·sau·rus·es\-ˈsȯr-ə-səz\

Definition of THESAURUS

1

: treasury, storehouse

2

a : a book of words or of information about a particular field or set of concepts; especially : a book of words and their synonyms b : a list of subject headings or descriptors usually with a cross-reference system for use in the organization of a collection of documents for reference and retrieval

— the·sau·ral \-ˈsȯr-əl\ adjective

Origin of THESAURUS

New Latin, from Latin, treasure, collection, from Greek thēsauros

First Known Use: circa 1823

Rhymes with THESAURUS

canorous, Centaurus, clitoris, decorous, pelorus, phosphorous, sonorous