(vocabularies)
1.
Your ~ is the total number of words you know in a particular language.
His speech is immature, his ~ limited...
N-VAR: oft with poss
2.
The ~ of a language is all the words in it.
...a new word in the German ~.
N-SING
3.
The ~ of a subject is the group of words that are typically used when discussing it.
...the ~ of natural science.
N-VAR: with supp