The basic vocabulary of a language is those words that must be learnt.一种语言的基本词汇即那些必须掌握的词语。
He has a large vocabulary in English.他的英语词汇量很大。
There is a vocabulary at the back of our English book.我们英语课本的后面附有词汇表。

［词源］＜中古拉丁语vocabularium(词汇)