lexicon

lexicon
/ˈleksɪkən; ?@ -kɔn; `lɛksɪkɑn/ n
1 dictionary, esp of an ancient language (eg Greek or Hebrew) 词典, 字典（尤指古代语言的辞书, 如希腊语或希伯来语）.
2 (linguistics 语言) vocabulary (contrasted with grammar) 词汇（与语法相对）.

牛津英汉双解词典