Search more than 275,000 synonyms, antonyms, related words, and idiomatic phrases. The thesaurus is more than just a list of synonyms; it is your guide to more precise and effective use of language.
To save this word, you'll need to log in.
the·sau·rus | \ thi-ˈsȯr-əs \ plural thesauri\ thi-ˈsȯr-ˌī , -ˌē \ or thesauruses\ thi-ˈsȯr-ə-səz \
1a : 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