thesaurus
/θɪˈsɔ:rəs; θɪ`sɔrəs/ n
(pl ~es / -rəsɪz; -rəsɪz/ or thesauri / θɪˈsɔ:raɪ; θɪ`sɔraɪ/)
1 book containing listsof words and phrases grouped according to their meanings 语词典; 同类语词典; 同义语词典.
2 dictionary containing words of a certain type 同类词词典; 分类词典
a thesaurus of slang 俚语词典.