[noun] [C] [plural] thesauruses or [formal] thesauri - a type of dictionary in which words with similar meanings are grouped togetherAt the entry for 'kill', my thesaurus lists 'murder', 'assassinate' and 'waste'.
THESAURUS
Meaning of THESAURUS in English
Cambridge English vocab. Кембриджский английский словарь. 2012