word 普通用词，指语言的最小单位的单词、字，也可指话、整句话或一段话。
vocabulary 集合名词，指词汇、语汇或词汇量。
language 普通用词，指国家、民族或种族内部使用，已经系统化的语言。
term 指有特定意义的词，词语或术语。
lexicon 指某种语言、某人或某一知识领域的全部词汇。
参考例句
1. He attended my every word in class. 上课时他倾听我的每一句话。
2. Which is the longest word in English? 英语中最长的单词是哪一个？
3. Morning, in the other word cut again? 上午，也就是说，所谓的剪头了？
英英解释
n.
1. a unit of language that native speakers can identify
2. a brief statement
3. new information about specific and timely events
4. the divine word of God; the second person in the Trinity (incarnate in Jesus)
5. a promise
6. a secret word or phrase known only to a restricted group
7. an exchange of views on some topic
8. the sacred writings of the Christian religions
9. a verbal command for action
10. a word is a string of bits stored in computer memory v.
1. put into words or an expression
