vocabulary
n. C / Un. all the words that a person knows or uses in a specific language. It can also mean the set of words used in a particular subject, like science or music.
n. the body of words used in a particular language or known to an individual speaker. Often used to describe the lexical range of a specific field or academic discipline.
Reading books is a great way to improve your vocabulary.
The teacher noticed that the student's writing improved significantly after they started learning more academic vocabulary.
While the basic vocabulary of a language allows for daily survival, mastering its technical nuances is essential for participating in professional or academic discourse at a high level.
Learned borrowing from Medieval Latin vocābulārium. Doublet of vocabularium.
Usually uncountable when referring to the general concept of word knowledge; countable when referring to a specific list or the set of words in a particular book.
I learned many new vocabularies todayI learned a lot of new vocabulary todayWhen referring to the words you know in one language, the noun is uncountable. Use 'new words' or 'vocabulary' instead of the plural form.