lexicon

这本词典收录了医学术语的词汇。

This dictionary includes the ___lexicon of medical terminology.

英语的词汇总量非常丰富。

The ___lexicon of English is incredibly vast.

为了研究古希伯来语，他购买了一本希伯来语词典。

He bought a Hebrew ___lexicon to study ancient Hebrew.