Definitions

1. noun

the words, terms, and phrases that make up a language, especially a person’s knowledge of them.

“She had a strong vocabulary from reading so many books.”

2. noun

the words that a person uses in speaking or writing.

“His vocabulary was limited, and he struggled to express himself clearly.”

3. noun

a list of words or phrases, especially one compiled for a particular purpose.

“The teacher used a vocabulary list to help her students with their spelling.”