A usually alphabetized and explained collection of words e.g. of a particular field, or prepared for a specific purpose, often for learning. / The collection of words a person knows and uses.

(in combination) Having a vocabulary (of a specified kind or size).

plural of vocabulary

Synonym of active vocabulary

(education, US) A word which a student is expected to learn; a word included in a test of one's general vocabulary or of subject-specific terminology

(slang) Off-color or obscene vocabulary; especially, four-letter words.

plural of vocabulary word

The words and phrases, collectively, that someone understands in speech and writing but does not commonly use.

The collection of words and phrases that someone commonly uses in speech and writing.

(lexicography) A restricted set of words used to define all other terms in a dictionary.