- the lexicon[singular] (
linguistics 语言学 all the words and phrases used in a particular language or subject; all the words and phrases used and known by a particular person or group of people （某语言或学科、某人或群体使用的）全部词汇 the lexicon of finance and economics 财经词汇
- [countable]
a list of words on a particular subject or in a language in alphabetical order （某学科或语言的）词汇表 a lexicon of technical scientific terms 科技术语词汇表
- [countable]
a dictionary, especially one of an ancient language, such as Greek or Hebrew （尤指希腊语或希伯来语等古代语言的）词典，字典
Word Originearly 17th cent.: modern Latin, from Greek lexikon (biblion) ‘(book) of words’, from lexis ‘word’, from legein ‘speak’.