1. [ noun ] (linguistics,writing) a listing of the words used in some enterprise
Related terms: wordbook
2. [ noun ] a language user's knowledge of words
Synonyms: lexicon mental_lexicon
Related terms: cognition language
3. [ noun ] the system of techniques or symbols serving as a means of expression (as in arts or crafts)

"he introduced a wide vocabulary of techniques"

Related terms: frame_of_reference art