Refers to the set of words known or used by a person, group, or in a particular field. Can also mean the vocabulary of a language as a whole.
Reading helps increase your vocabulary.
I couldn't read the paper because I lacked the technical vocabulary.
He has a rich vocabulary, so his writing is very easy to understand.
I'm building up my vocabulary by studying words every day.
When I first started learning the foreign language, my vocabulary was limited.
Children acquire vocabulary through picture books.
lexicology